Seiko Cal. 5610 - 121

This Hand-Winding model from 1973 features a 38mm Stainless Steel case. With its 21mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-8a810bc505df]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1973

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