Seiko Cal. 7031 - 356

The Seiko 7031-356 represents an important milestone in Seiko's 1978 lineup. Powered by the 7031 caliber with 29j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-db1b20c985f0]

Also known as: Rally, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1978

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