Piaget Sixtie Steel Diamonds Ref. G0A50300 Review

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The Piaget Sixtie Steel Diamonds arrives at a moment when watchmaking seems locked in a cycle of familiar shapes and predictable proportions. Round cases dominate wrists, cushion forms provide the occasional alternative, and rectangles suggest dress watch heritage. Against this backdrop, the Sixtie introduces something different: a trapezoid, unapologetically geometric, worn as jewellery rather than simply as a timepiece. Piaget has revisited its archives to resurrect a shape that first appeared during the late 1960s, when the maison’s creative direction took an audacious turn. The reference G0A50300 represents the steel and diamond iteration of this collection, combining architectural form with precious touches in a package that feels present and elegant on the wrist.

Piaget Sixtie Steel Diamonds Ref. G0A50300

The Origins of the Sixtie Collection

1969 stands as a pivotal year in Piaget‘s history. At the Basel Fair, the Piaget family unveiled what they called the 21st Century Collection, a series of designs that fundamentally challenged the relationship between horology and jewellery. Under the creative guidance of Jean-Claude Gueit, the collection introduced forms that prioritised design over convention. Gueit, whose son Emmanuel would later design the Audemars Piguet Royal Oak Offshore, approached watchmaking as sculpture rather than function.

The 21st Century Collection featured cuff watches with deep openwork, Swinging Sautoirs that draped down the chest, and hard stone dials that transformed watch faces into canvases of natural colour. Among these avant-garde creations, the trapeze shape emerged as particularly distinctive. Its geometry mirrored the broader design language of the era, drawing parallels with Yves Saint Laurent’s trapeze dress from his 1958 collection for Dior.

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Valentin Piaget reportedly sent his designers to Paris couture shows specifically to observe fashion’s evolution. The influence appears evident: Saint Laurent’s trapeze dress embodied freedom from the constricting silhouettes that had dominated women’s fashion, creating a form that was both architectural and liberating. Piaget’s trapeze watches carried this same sensibility, offering timepieces that defied traditional proportions whilst celebrating femininity through unconventional means.

The trapeze design gradually established itself as a cult form within Piaget‘s repertoire throughout the 1960s and 1970s. It appeared on various pieces, from statement cuffs to pendant watches, always maintaining its distinctive geometry. The shape’s appeal lay in its ability to be both geometric and organic, structured yet fluid when worn.

Following this golden era, the trapeze form receded from Piaget‘s regular collections, preserved in the archives rather than in production. The Sixtie collection, unveiled at Watches and Wonders 2025, brings this historical design language into contemporary production. The collection comprises four references in various material combinations: full stainless steel with diamonds, two-tone steel and 18K rose gold, 18K rose gold, and 18K rose gold with diamonds.

Dial Architecture and Finishing

The dial of the G0A50300 employs what Piaget terms a white solar satin-brushed finish. The vertical brushing creates a texture that interacts dynamically with light, revealing subtle gradations in tone as the wrist moves. This finishing technique echoes the gadroons on the bezel, establishing a dialogue between case and dial through texture rather than explicit visual connection.

Applied golden hour markers punctuate the dial at regular intervals, their trapezoidal forms radiating outward from the centre. The markers themselves are not strictly rectangular but subtly widened towards their outer edges, maintaining the radial geometry whilst introducing variation in proportion. Roman numerals appear at 12 and 6 o’clock positions. The Piaget logo occupies the 3 o’clock position, replacing what would traditionally be an hour marker.

Baton-style hands in gold sweep across the dial surface. Their slender proportions maintain legibility without dominating the composition. The hands’ finish matches the hour markers, creating continuity across the dial’s furniture whilst remaining distinct from the brushed surface beneath.

The dial’s layout demonstrates restraint. No date window interrupts the symmetry, no complications add visual weight. The focus remains on proportion and balance, allowing the trapeze case shape to define the watch’s character rather than dial complexity.

Movement Specifications

The Sixtie G0A50300 houses the Piaget Manufacture 57P quartz movement. Piaget‘s choice of quartz calibre serves the collection’s design priorities: maintaining the ultra-slim case thickness that defines the Sixtie’s wearable proportions.

The 57P movement delivers standard quartz precision and reliability. Its selection reflects Piaget‘s historical expertise in ultra-thin calibres, dating back to the 9P manual-winding movement of 1957 and the 12P automatic of 1960, which held the record as the world’s thinnest self-winding movement of its era. The quartz calibre allows the case architecture to remain slim whilst providing years of accurate timekeeping with minimal intervention.

Case Construction and Finishing

The G0A50300’s trapezoid case measures 29mm at its widest point and 25.3mm from top to bottom. The 6.5mm thickness allows the watch to slide beneath a cuff without disruption. These proportions create a presence on the wrist that feels substantial without dominating.

Stainless steel forms the case material. The choice represents the entry point to the Sixtie collection whilst maintaining Piaget‘s finishing standards. The case construction features softly rounded corners that temper the trapezoid’s angularity. Integrated lugs flow seamlessly into the case body, eliminating the visual break that traditional lugs would introduce.

On the G0A50300, the bezel carries 51 brilliant-cut diamonds totalling approximately 0.52 carats. The stones follow the bezel’s trapezoid geometry, set to maintain the case’s architectural lines rather than creating a separate decorative band. Each diamond is individually set, secured by prongs crafted from the surrounding steel. The setting process requires precise calculation to ensure the case’s structural integrity remains intact despite the metal removed for stone placement.

The case finishing features polished surfaces, catching light from different angles, animating the steel through surface treatment rather than volume. The finishing extends to the case flanks and caseback, maintaining consistency across all visible surfaces. A sapphire crystal protects the dial. The crystal follows the case’s trapezoid form, integrating into the bezel without visual interruption.

The bracelet represents perhaps the Sixtie’s most distinctive technical achievement. Composed of interlaced trapeze-shaped links, the bracelet mirrors the case geometry throughout its length. Each link echoes the watch head’s proportions at a smaller scale, creating visual continuity from case to clasp.

The links are semi-circular in cross-section, allowing them to articulate smoothly around the wrist’s curves. The construction permits the bracelet to drape with suppleness despite its substantial appearance. Engineers at Piaget designed the linkage to maintain close contact with the wrist, preventing the gaps that often appear with rigid bracelet constructions on non-circular cases.

A triple folding clasp secures the bracelet. The push-button mechanism remains hidden, preserving the bracelet’s visual flow without obvious interruption. The clasp construction allows the bracelet to open securely whilst maintaining comfort during wear.

Subtle, Precious, Iconic

The Sixtie Steel Diamonds exists between categories. It refuses the pure utility of a tool watch, declines the rectangular formality of traditional dress watches, and sidesteps the ubiquitous sports watch archetype. Instead, it occupies territory that Piaget has cultivated since 1969: the jewellery watch that happens to tell time.

Yves Piaget’s assertion that “at Piaget, a timepiece is first and foremost a piece of jewellery” finds clear expression in the Sixtie’s construction. The trapezoid case challenges conventional proportions, the diamond-set bezel elevates the steel case into precious territory, and the interlaced bracelet suggests goldwork rather than typical watch bracelet construction.

The watch wears its heritage without becoming costume. The 1960s inspiration appears in the geometry and gadroon detailing (at non-set pieces), yet the execution feels contemporary rather than retrospective. The subtle thickness ensures the watch slips beneath a sleeve without difficulty, whilst the 29mm width provides presence without dominance.

At 11 800 €, the G0A50300 positions itself as an accessible entry to Piaget‘s jewellery watch universe. The steel case and quartz movement keep the price considerably below the gold variants, yet the diamond bezel and finishing standards maintain the collection’s luxury positioning.

The Sixtie collection represents Piaget‘s commitment to form as an expression of creativity. Where other manufactures emphasise complications or chronometric performance, Piaget has consistently championed design as the primary distinguishing factor. The Sixtie continues this tradition, offering geometry and proportion as the compelling reasons for acquisition rather than technical specifications or functional capabilities.

For those seeking difference on the wrist, for the ladies who appreciate design heritage, and for anyone fatigued by the circular monotony that dominates contemporary watchmaking, the Sixtie Steel Diamonds offers a distinct alternative. It wears like jewellery, tells time with quartz reliability, and carries the confidence of a shape that defied convention nearly sixty years ago whilst remaining relevant today.

Piaget Sixtie Steel Diamonds Ref. G0A50300 Technical Specifications

Reference G0A50300 – CHF 10 800 / 11 800 € / $ 11,500 / C¥ 89,000 / J¥ 1,698,400 / £ 9 800 / SAR 45,900 / AED 43,400 / HK$ 88,000/ 16 200 S$

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