Seiko Cal. 4542 - 377

The Seiko 4542-377 represents an important milestone in Seiko's 1968 lineup. With its 21mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-b71f418d6835]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1968

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