Seiko Cal. 4523 - 637

The Seiko 4523-637 represents an important milestone in Seiko's 1986 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-6ac501f595c2]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1986

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