Seiko Cal. 4527 - 274

The Seiko 4527-274 represents an important milestone in Seiko's 1975 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-1742a2534dd8]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1975

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