Seiko Cal. 6637 - 415

Seiko 6637-415

This Automatic model from 1982 features a 43mm Stainless Steel case. Powered by the 6637 caliber with 20j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-a70f5fa01496]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
14.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
180m
Dial Color
Navy
Jewels
20j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1982

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seikata-wm-a70f5fa01496