Seiko Cal. 6637 - 196

Seiko 6637-196

This Quartz model from 1989 features a 40mm PVD Black case. Powered by the 6637 caliber with 18j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-a212c7e7533f]

Also known as: Monster

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
40mm
Case Thickness
14.8mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
130m
Dial Color
Champagne
Jewels
18j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1989

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