Seiko Cal. 6656 - 323

This Hand-Winding model from 1973 features a 45mm Stainless Steel case. With its 18mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-b9637a40d7ee]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1973

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