Seiko Cal. 7031 - 673

The 7031-673 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7031 caliber with 27j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-c63044f3cb03]

Also known as: Rally, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1970

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