Seiko Cal. 4528 - 548

This Spring Drive model from 1979 features a 42mm Two-Tone case. It features a Black dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-78e92cad1b45]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1979

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