Seiko Cal. 3894 - 331

Seiko 3894-331

This Automatic model from 1965 features a 40mm PVD Black case. Powered by the 3894 caliber with 30j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-4f26b0c0a615]

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
14.7mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Green
Jewels
30j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1965

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