Seiko Cal. 4530 - 635

The 4530-635 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-a75fa37eabe5]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1987

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