Seiko Cal. 6221 - 310

This Automatic model from 1997 features a 39mm Hardlex-Coated Steel case. Powered by the 6221 caliber with 33j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-4d64332de088]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1997

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