Seiko Cal. 6631 - 496

Seiko 6631-496

This Quartz model from 1980 features a 35mm PVD Black case. Powered by the 6631 caliber with 27j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-da0a9270747b]

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
35mm
Case Thickness
13.9mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
180m
Dial Color
Navy
Jewels
27j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1980

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