Case

Shape

Round

Diameter (in mm)

40

Material

Stainless Steel

Water Resistance

3 ATM

Bezel

Fixed Stainless Steel

Winding Crown

Fluted

Model Case

Highly polished stainless steel, Screwed see through case-back

Crystal

Double curved sapphire crystal typical from the 50s

Movement

Jewels

27

Power Reserve

42 Hours

Frequency

28,800 vph

Diameter (in mm)

25.6

Functions

Date, Hours, Minutes, Small seconds

Movement

Automatic

Winding

Self-winding Chronograph

Height (in mm)

4.35

Caliber

CYS 5156 (ETA 2895-2)

Dial

Indexes

Arabic Numerals at 3, 6 and 9 o'clock, Indices

Details

Hour & minute hands coated with Superluminova, Index applied rhodium treatement, Minute markers around the inner rim, Minutes track printed in black, Rivet logo at 12 o'clock, The design of all hands was made by CyS

Color

Sunray Silver

Bracelet

Clasp

Stainless steel folding buckle with engraved CyS emblem

Material

Black Louisiana Alligator leather

Bracelet

Black Louisiana alligator leather strap