Seiko Cal. 6638 - 230

Seiko 6638-230

This Kinetic model from 1966 features a 37mm Hardlex-Coated Steel case. Powered by the 6638 caliber with 32j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-b14ee484f6bb]

Also known as: Monster

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
11.3mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
100m
Dial Color
Black
Jewels
32j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1966

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