Seiko Cal. 5615 - 544

This Hand-Winding model from 1966 features a 41mm Stainless Steel case. Powered by the 5615 caliber with 29j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-976626cd245a]

Also known as: Sumo, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1966

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