Seiko Cal. 3859 - 910

This Automatic model from 1968 features a 39mm Two-Tone case. Powered by the 3859 caliber with 35j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-8a4f3df48f0d]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1968

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