Seiko Cal. 3871 - 312

The 3871-312 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3871 caliber with 28j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-038677971690]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1990

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