Seiko Cal. 4418 - 503

This Spring Drive model from 1966 features a 40mm Two-Tone case. It features a Silver dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-b6ee10b813e4]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1966

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