Seiko Cal. 4524 - 731

The Seiko 4524-731 represents an important milestone in Seiko's 1985 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-fff18b117bb7]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1985

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