Seiko Cal. 0783 - 401

This Spring Drive model from 1988 features a 41mm Two-Tone case. Powered by the 0783 caliber with 30j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-57c39c90ba63]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1988

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