Seiko Cal. 5645 - 979

The 5645-979 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5645 caliber with 31j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-08a8bb812f86]

Also known as: Shogun, Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1976

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