Shell Star Decompression Timer

Reference: 41701.670.6.034




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With sophisticated diving technology built upon the design of DELMA’s cherished Shell Star collection, the Shell Star Decompression Timer presents a rarely seen feature in a timepiece that is equally technical, durable and stylish. Key historical characteristics include a spade central seconds hand, the railway track and orange and white indexes.

The added functionality of the decompression timer is based on pioneering Swiss research of the 1950s and 60s and clearly displays when decompression stops are needed. Optimized for diving at 0-700 meters above sea level, the coordinating black unidirectional bezel can be used to precisely time dive duration. The vertical scale on the dial at 12 o‘clock corresponds to the dive depth while the white markings on the rings clearly indicate whether decompression stops are necessary.

The solid construction and helium escape valve enable a water resistance to 500 m / 1650 ft and a stainless-steel bracelet completes a unique diving tool worthy of attention. The automatic movement is visible through the transparent case back.

Technical specifications

Mechanism: Automatic
Caliber: ETA 2824 / SW200, Delma custom rotor
Power reserve (h): 38h
Number of jewels: 25/26
Frequency: 28'800 A/h
Case material: Stainless steel
Case back: Stainless steel with transparent mineral crystal
Size in mm: 44
Height in mm: 13.8
Weight in grams: 150
Water resistance: 50 ATM / 500 m / 1650 ft
Crystal: Sapphire crystal with AR coating
Bezel: Black anodized aluminum, unidirectional diver bezel
Lug size in mm: 24
Bracelet material: Stainless Steel
Bracelet color: Silver
Clasp: Deployment clasp with push buttons
Clasp material: Stainless steel
Model: Shell Star Automatic
Collection category: Diver
Functions: Decompression Timer, date, helium valve, Unidirectional diver bezel
Additional features: luminous hands and indexes, screw-down crown

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