Seiko Cal. 0740 - 635

Seiko 0740-635

The Seiko 0740-635 represents an important milestone in Seiko's 1974 lineup. Powered by the 0740 caliber with 20j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-25cacc10072b]

Also known as: Silverwave

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
45mm
Case Thickness
8.7mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Cream
Jewels
20j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1974

Related Models

seikata-wm-25cacc10072b