Seiko Cal. 6636 - 750

Seiko 6636-750

This Automatic model from 1987 features a 37mm Stainless Steel case. Powered by the 6636 caliber with 36j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-667bb0a08f18]

Also known as: Bellmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
10.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
30m
Dial Color
Blue Sunburst
Jewels
36j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1987

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