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H. MOSER & CIE. Endeavour Perpetual Calendar "Tantalum Blue Enamel" | Tantalum & Steel | Ref. 1800-2000 | Full Set
This timepiece is in pristine condition with no apparent signs of wear. It comes as a complete set including both inner and outer boxes, pusher tool, polishing cloth, and warranty card dated September 2023. MSRP: 94,500 USD.
The Endeavour Perpetual Calendar Tantalum Blue Enamel is a 42mm timepiece combining two of watchmaking's most demanding disciplines — rare material engineering and ancestral Grand Feu enamelling. The case is crafted from tantalum, a dense and exceptionally stable metal with a unique bluish-grey hue that is exceedingly difficult to machine and polish, paired with a stainless steel bezel for contrast. The Abyss Blue fumé "Grand Feu" enamel dial is fired in multiple stages at extreme heat, its depth and luminosity shifting dramatically under different light — presented without indices, without logo, and without distraction. A perpetual calendar is displayed with extraordinary elegance: retrograde date at 6 o'clock, month aperture at 12 o'clock, day aperture at 9 o'clock, and a purity leap year indicator — the manufacture's signature layout requiring no adjustment before 2100. Presented on a dark brown kudu leather strap with stainless steel pin buckle. Retailing at 94,500 USD, this example is offered meaningfully below current retail. The hand-wound HMC 800 is a manufacture perpetual calendar movement delivering an exceptional 168 hours (7 days) of power reserve, water-resistant to 30 meters.
Listing Details:
• Reference Number: 1800-2000
• Case Material: Tantalum & Stainless Steel
• Bezel Material: Stainless Steel
• Case Diameter: 42mm
• Crystal: Sapphire Crystal (Front & Back)
• Dial: Abyss Blue Fumé Grand Feu Enamel — No Indices, No Logo
• Dial Markers: Leaf-Shaped Hands Only
• Strap Material: Dark Brown Kudu Leather
• Clasp: Stainless Steel Pin Buckle
• Movement: HMC 800 (Manufacture, Hand-Wound)
• Power Reserve: 168h (7 Days)
• Water Resistance: 30m
• Complications: Perpetual Calendar (Retrograde Date, Month, Day, Leap Year)
• No Calendar Adjustment Required Before 2100
Location: Ridgefield Park, NJ, USA
This timepiece is in pristine condition with no apparent signs of wear. It comes as a complete set including both inner and outer boxes, pusher tool, polishing cloth, and warranty card dated September 2023. MSRP: 94,500 USD.
The Endeavour Perpetual Calendar Tantalum Blue Enamel is a 42mm timepiece combining two of watchmaking's most demanding disciplines — rare material engineering and ancestral Grand Feu enamelling. The case is crafted from tantalum, a dense and exceptionally stable metal with a unique bluish-grey hue that is exceedingly difficult to machine and polish, paired with a stainless steel bezel for contrast. The Abyss Blue fumé "Grand Feu" enamel dial is fired in multiple stages at extreme heat, its depth and luminosity shifting dramatically under different light — presented without indices, without logo, and without distraction. A perpetual calendar is displayed with extraordinary elegance: retrograde date at 6 o'clock, month aperture at 12 o'clock, day aperture at 9 o'clock, and a purity leap year indicator — the manufacture's signature layout requiring no adjustment before 2100. Presented on a dark brown kudu leather strap with stainless steel pin buckle. Retailing at 94,500 USD, this example is offered meaningfully below current retail. The hand-wound HMC 800 is a manufacture perpetual calendar movement delivering an exceptional 168 hours (7 days) of power reserve, water-resistant to 30 meters.
Listing Details:
• Reference Number: 1800-2000
• Case Material: Tantalum & Stainless Steel
• Bezel Material: Stainless Steel
• Case Diameter: 42mm
• Crystal: Sapphire Crystal (Front & Back)
• Dial: Abyss Blue Fumé Grand Feu Enamel — No Indices, No Logo
• Dial Markers: Leaf-Shaped Hands Only
• Strap Material: Dark Brown Kudu Leather
• Clasp: Stainless Steel Pin Buckle
• Movement: HMC 800 (Manufacture, Hand-Wound)
• Power Reserve: 168h (7 Days)
• Water Resistance: 30m
• Complications: Perpetual Calendar (Retrograde Date, Month, Day, Leap Year)
• No Calendar Adjustment Required Before 2100
Location: Ridgefield Park, NJ, USA

