Seiko Cal. 6636 - 831

Seiko 6636-831

This Automatic model from 1987 features a 34mm Gold-Plated case. Powered by the 6636 caliber with 30j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-58807b837243]

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
9.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
140m
Dial Color
Silver
Jewels
30j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1987

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seikata-wm-58807b837243