Seiko Cal. 3861 - 870

The Seiko 3861-870 represents an important milestone in Seiko's 1989 lineup. Powered by the 3861 caliber with 22j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-6da9ffb891ff]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1989

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