Seiko Cal. 4425 - 403

The Seiko 4425-403 represents an important milestone in Seiko's 1973 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-8049ccbfbe3f]

Also known as: Bullhead, Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1973

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