Seiko Cal. 4549 - 640

Seiko 4549-640

This Hand-Winding model from 1974 features a 40mm Hardlex-Coated Steel case. With its 22mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-a0d6f66cb1b6]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
15.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Green
Jewels
19j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1974

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