Seiko Cal. 6660 - 554

This Hand-Winding model from 1985 features a 43mm Stainless Steel case. With its 18mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-2f11e79b2864]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1985

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