Seiko Cal. 4490 - 320

This Quartz model from 1971 features a 41mm Gold-Plated case. It features a Silver dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-95d80790b0a4]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1971

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