Seiko Cal. 3816 - 866

This Quartz model from 1986 features a 44mm Hardlex-Coated Steel case. Powered by the 3816 caliber with 17j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-6e177ab4d731]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1986

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