Seiko Cal. 6610 - 953

This Hand-Winding model from 1965 features a 41mm PVD Black case. With its 18mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-ad3415347c8b]

Also known as: Tuna, Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1965

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