Seiko Cal. 3821 - 438

This Spring Drive model from 1970 features a 45mm Gold-Plated case. Powered by the 3821 caliber with 18j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-b8a86acf6248]

Also known as: World Timer, Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1970

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