Seiko Cal. 7031 - 431

The 7031-431 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7031 caliber with 30j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-02c85fa6511c]

Also known as: Goldfeather, Golden Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1997

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