Seiko Cal. 4525 - 153

This Quartz model from 1968 features a 46mm Two-Tone case. It features a Cream dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-5bf97bb455d4]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1968

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