Seiko Cal. 0730 - 364

This Spring Drive model from 1976 features a 39mm Two-Tone case. Powered by the 0730 caliber with 34j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-63e7ccfbb265]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1976

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