Seiko Cal. 4488 - 631

Seiko 4488-631

This Hand-Winding model from 1993 features a 45mm PVD Black case. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-778ba8086ba4]

Also known as: Tuna, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
45mm
Case Thickness
8.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
160m
Dial Color
Green
Jewels
35j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1993

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seikata-wm-778ba8086ba4