Seiko Cal. 7136 - 645

The 7136-645 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-5fb13fd8f9bb]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1991

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