Seiko Cal. 4537 - 452

The Seiko 4537-452 represents an important milestone in Seiko's 1969 lineup. Powered by the 4537 caliber with 25j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-02f4cf01daf1]

Also known as: Crown

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1969

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