Seiko Cal. 4542 - 685

The Seiko 4542-685 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-5756c6100c4a]

Also known as: Helmet, Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1975

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