Shell Star Decompression Timer

Reference: 41701.670.6.154




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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 orange 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 solid 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:  SW200-1, DELMA custom rotor
Power reserve: 38 h
Number of jewels: 26
Frequency: 28,800 A/h
Case: Stainless steel with screw down crown
Case back: Stainless steel with transparent mineral crystal
Size: 44 mm
Height: 13.8 mm
Lug size: 24 mm
Weight: 150 g
Water resistance: 50 ATM / 500 m / 1650 ft
Crystal: Sapphire crystal with AR coating
Bezel: Orange anodized aluminum, unidirectional diver bezel
Dial: Black dial, applied indexes with SLN C5
Hands: Hour, minute and central seconds with SLN C5
Bracelet material: Stainless Steel
Bracelet color: Silver
Clasp: Deployant clasp with pushers
Clasp material: Stainless steel
Model: Shell Star Titanium
Collection category: Diver
Additional functions: Decompression timer, date, helium escape valve

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