Seiko Cal. 6637 - 977

Seiko 6637-977

This Automatic model from 1992 features a 43mm Hardlex-Coated Steel case. Powered by the 6637 caliber with 17j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-25cf630bb495]

Also known as: Pogue, World Timer

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
8.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Black
Jewels
17j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1992

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