Seiko Cal. 5640 - 634

Seiko 5640-634

The Seiko 5640-634 represents an important milestone in Seiko's 1974 lineup. Powered by the 5640 caliber with 30j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-77927a911734]

Also known as: Turtle, Pogue

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
38mm
Case Thickness
10.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
80m
Dial Color
White
Jewels
30j
Frequency
36,000 bph
Power Reserve
70 hours
Year
1974

Related Models

seikata-wm-77927a911734