Seiko Cal. 4540 - 733

Seiko 4540-733

The 4540-733 is a sought-after Automatic piece from Seiko's golden era. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-3e4a848835b1]

Also known as: Samurai, UFO

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
13.7mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
120m
Dial Color
Navy
Jewels
20j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1977

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