Seiko Cal. 5648 - 190

Seiko 5648-190

This Hand-Winding model from 1974 features a 37mm Titanium case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-d5d4a3a09d75]

Also known as: Tuna, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
37mm
Case Thickness
10.1mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
130m
Dial Color
Champagne
Jewels
19j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1974

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seikata-wm-d5d4a3a09d75