Seiko Cal. 3866 - 271

The Seiko 3866-271 represents an important milestone in Seiko's 1965 lineup. Powered by the 3866 caliber with 30j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-9ff20fc67b9f]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1965

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