Seiko Cal. 3877 - 705

The Seiko 3877-705 represents an important milestone in Seiko's 1991 lineup. Powered by the 3877 caliber with 33j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-be0db6661a33]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1991

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