Seiko Cal. 6221 - 923

The Seiko 6221-923 represents an important milestone in Seiko's 1976 lineup. It features a Green dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-2a541b884b6c]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1976

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