Seiko Cal. 4540 - 427

Seiko 4540-427

This Kinetic model from 1971 features a 46mm Two-Tone case. Powered by the 4540 caliber with 32j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-7221f7f37992]

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
11.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Navy
Jewels
32j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1971

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seikata-wm-7221f7f37992