Seiko Cal. 6331 - 871

The 6331-871 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6331 caliber with 34j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-468c31b53423]

Also known as: Samurai, Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1969

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