Seiko Cal. 3815 - 729

The Seiko 3815-729 represents an important milestone in Seiko's 1981 lineup. Powered by the 3815 caliber with 18j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-5435d1c461af]

Also known as: Bullhead, Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1981

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