Seiko Cal. 7040 - 131

This Hand-Winding model from 1965 features a 34mm Hardlex-Coated Steel case. Powered by the 7040 caliber with 23j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-878e5612289a]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1965

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