Seiko Cal. 6231 - 751

The 6231-751 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6231 caliber with 33j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-e6fcb4ab120c]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1979

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