Seiko Cal. 3877 - 501

The Seiko 3877-501 represents an important milestone in Seiko's 1997 lineup. Powered by the 3877 caliber with 30j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-a52d6144c787]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1997

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