Seiko Cal. 4540 - 604

Seiko 4540-604

This Kinetic model from 1970 features a 40mm Hardlex-Coated Steel case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-4b46b0c26b6a]

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
15.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Cream
Jewels
34j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1970

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