Seiko Cal. 3878 - 448

Seiko 3878-448

This Automatic model from 1967 features a 39mm Gold-Plated case. Powered by the 3878 caliber with 29j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-5fc8ea2414a2]

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
9.9mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Navy
Jewels
29j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1967

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