Seiko Cal. 4540 - 623

The 4540-623 is a sought-after Hand-Winding piece from Seiko's golden era. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-5c7c3c475e66]

Also known as: UFO, Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1987

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