Seiko Cal. 4555 - 640

Seiko 4555-640

The 4555-640 is a sought-after Kinetic piece from Seiko's golden era. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-09c54014fe51]

Also known as: World Timer

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
13.8mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Champagne
Jewels
20j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1991

Related Models

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