Seiko Cal. 6621 - 661

This Hand-Winding model from 1983 features a 43mm PVD Black case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-e5bd53743b28]

Also known as: Bullhead, Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1983

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