Seiko Cal. 4540 - 443

Seiko 4540-443

The 4540-443 is a sought-after Kinetic piece from Seiko's golden era. With its 22mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-1f1511a4e803]

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
15.2mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
70m
Dial Color
Champagne
Jewels
19j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1970

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seikata-wm-1f1511a4e803