Seiko Cal. 5617 - 161

Seiko 5617-161

This Automatic model from 1965 features a 35mm PVD Black case. Powered by the 5617 caliber with 30j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-8c7427d20a6d]

Also known as: Baby Tuna, Arnie

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
35mm
Case Thickness
9.8mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Green
Jewels
30j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1965

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