Seiko Cal. 6621 - 323

This Hand-Winding model from 1965 features a 39mm Titanium case. With its 19mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-32181f6c28d6]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1965

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