Seiko Cal. 4425 - 456

This Spring Drive model from 1970 features a 45mm Stainless Steel case. It features a Navy dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-3c48e48a6196]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1970

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