Seiko Cal. 4537 - 399

This Solar model from 1966 features a 45mm Stainless Steel case. It features a Navy dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-3a919102d0d1]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1966

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