Seiko Cal. 3899 - 860

The 3899-860 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3899 caliber with 22j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-e2a5186e24e6]

Also known as: Monster, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1989

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