Seiko Cal. 6221 - 646

This Automatic model from 1983 features a 44mm Titanium case. Powered by the 6221 caliber with 31j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-c68354b656fc]

Also known as: Tuna, Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1983

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