Seiko Cal. 4540 - 604

The 4540-604 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-822072ee3438]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1990

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