Seiko Cal. 3877 - 925

The 3877-925 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3877 caliber with 22j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-2945965968b2]

Also known as: Sea Horse, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1986

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