Seiko Cal. 4520 - 373

The 4520-373 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-e9bc575593ed]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1996

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