Seiko Cal. 3871 - 440

Seiko 3871-440

This Automatic model from 1972 features a 43mm Gold-Plated case. Powered by the 3871 caliber with 34j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-f0e3a80f6312]

Also known as: Turtle, Bullhead

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
8.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
60m
Dial Color
Blue Sunburst
Jewels
34j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1972

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