

Shell Star Decompression Timer
Description
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 blue 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 blue genuine rubber strap completes a unique diving tool worthy of attention. The automatic movement is visible through the transparent case back.
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Tech Specs

CASE DIMENSIONS
Diameter 44 mm
Height 13.8 mm
Lug width 24 mm
Lug-to-lug size 51 mm
Case Material
316L stainless steel with helium escape valve
Case Finish
Brushed and polished
Case Back
Screw-down stainless steel with 4 screws and mineral crystal
Bezel
Blue anodized aluminum, unidirectional diver bezel
Crystal
Sapphire crystal with AR coating
Crown
Stainless steel screw-down
Dial
Hands
Hour, minute and central seconds with SLN C5
Bracelet
Blue genuine rubber strap
Clasp
Stainless-steel buckle
Water-resistance
50 ATM / 500 m / 1650 ft
Weight
150 g
Movement

Caliber
Sellita SW200-1
Winding
Self-winding
Functions
Power reserve
41 hours
Frequency
28'800 A/h
JEWELS
26