Seiko Cal. 5240 - 338

This Spring Drive model from 1981 features a 38mm Stainless Steel case. Powered by the 5240 caliber with 29j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-39b12ddf9362]

Also known as: Monster, Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1981

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