Seiko Cal. 3877 - 351

The Seiko 3877-351 represents an important milestone in Seiko's 1965 lineup. It features a Silver dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-5e369641918e]

Also known as: Monster, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1965

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