Seiko Cal. 3877 - 306

Seiko 3877-306

The Seiko 3877-306 represents an important milestone in Seiko's 1967 lineup. Powered by the 3877 caliber with 20j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-4bd41e96e26a]

Also known as: Turtle, Bellmatic

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
13.1mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Green
Jewels
20j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1967

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