Seiko Cal. 5649 - 755

This Spring Drive model from 1978 features a 45mm PVD Black case. Powered by the 5649 caliber with 26j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-8b7146903cbb]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1978

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