Seiko Cal. 4528 - 636

The 4528-636 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-cf3aaa12dcc7]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1972

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