Seiko Cal. 4537 - 305

The Seiko 4537-305 represents an important milestone in Seiko's 1980 lineup. Powered by the 4537 caliber with 18j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-901d122029b0]

Also known as: Tuna, Rally

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1980

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