Seiko Cal. 4485 - 357

The Seiko 4485-357 represents an important milestone in Seiko's 1973 lineup. It features a Navy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-35de5156acf6]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1973

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