Seiko Cal. 5649 - 726

The 5649-726 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-0aa2df36d38c]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1980

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