Seiko Cal. 6131 - 871

The 6131-871 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6131 caliber with 27j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-c1044cba491c]

Also known as: Shogun, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1969

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