Seiko Cal. 5650 - 673

This Spring Drive model from 1983 features a 36mm Stainless Steel case. With its 18mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-2a6fc7394ec7]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1983

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