Seiko Cal. 6615 - 744

This Hand-Winding model from 1974 features a 41mm PVD Black case. Powered by the 6615 caliber with 18j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-9487d939c5a2]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1974

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