Seiko Cal. 7031 - 367

The Seiko 7031-367 represents an important milestone in Seiko's 1974 lineup. Powered by the 7031 caliber with 32j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-4c6a728d24d0]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1974

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