Seiko Cal. 7040 - 577

Seiko 7040-577

This Automatic model from 1991 features a 40mm Hardlex-Coated Steel case. Powered by the 7040 caliber with 36j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-9b3eff13e070]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
10.7mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
80m
Dial Color
Champagne
Jewels
36j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1991

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seikata-wm-9b3eff13e070