Seiko Cal. 3860 - 100

The 3860-100 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3860 caliber with 33j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-a21214d945f2]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1980

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