Seiko Cal. 4559 - 637

Seiko 4559-637

This Automatic model from 1982 features a 45mm PVD Black case. With its 18mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-a08bfaa1f793]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
45mm
Case Thickness
12.4mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
60m
Dial Color
White
Jewels
24j
Frequency
36,000 bph
Power Reserve
38 hours
Year
1982

Related Models

seikata-wm-a08bfaa1f793