Seiko Cal. 3877 - 105

The Seiko 3877-105 represents an important milestone in Seiko's 1967 lineup. It features a Silver dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-d21778028f3b]

Also known as: Tuna, Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1967

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