Seiko Cal. 4536 - 643

This Spring Drive model from 1968 features a 42mm Stainless Steel case. It features a Navy dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-5766459e92ca]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1968

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