Seiko Cal. 3878 - 407

Seiko 3878-407

This Automatic model from 1965 features a 39mm Gold-Plated case. Powered by the 3878 caliber with 28j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-01d33b534e23]

Also known as: Turtle

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
8.1mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
100m
Dial Color
Silver
Jewels
28j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1965

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