Seiko Cal. 4542 - 727

The Seiko 4542-727 represents an important milestone in Seiko's 1978 lineup. Powered by the 4542 caliber with 26j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-848e42eec9aa]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1978

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