Seiko Cal. 3877 - 984

The 3877-984 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3877 caliber with 33j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-aba6bb7fec4b]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1986

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