Seiko Cal. 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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