Seiko Cal. 6636 - 876

Seiko 6636-876

This Automatic model from 1978 features a 38mm Two-Tone case. Powered by the 6636 caliber with 27j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-a69b2a863a86]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
38mm
Case Thickness
8.6mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
110m
Dial Color
Cream
Jewels
27j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1978

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seikata-wm-a69b2a863a86