Seiko Cal. 6140 - 497

This Spring Drive model from 1978 features a 34mm Hardlex-Coated Steel case. Powered by the 6140 caliber with 22j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-f01fbf8acdba]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1978

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