Seiko Cal. 6331 - 175

The 6331-175 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6331 caliber with 27j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-f90af663fc1c]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1979

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