Seiko Cal. 4438 - 423

This Solar model from 1965 features a 37mm Gold-Plated case. It features a Cream dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-caeefc854579]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1965

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