Seiko Cal. 3899 - 315

The Seiko 3899-315 represents an important milestone in Seiko's 1971 lineup. Powered by the 3899 caliber with 32j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-cd86566ff6de]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1971

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