Seiko Cal. 7140 - 589

This Hand-Winding model from 1978 features a 36mm Gold-Plated case. Powered by the 7140 caliber with 23j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-c254ab0e9348]

Also known as: World Timer, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1978

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