Seiko Cal. 3866 - 961

This Automatic model from 1986 features a 38mm Hardlex-Coated Steel case. Powered by the 3866 caliber with 30j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-b68aa852cf88]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1986

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