Seiko Cal. 6665 - 231

This Hand-Winding model from 1994 features a 40mm Stainless Steel case. With its 21mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-37ffeea1b79c]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1994

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