Seiko Cal. 4542 - 688

The 4542-688 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4542 caliber with 30j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-53dbfe7b1c6b]

Also known as: World Timer, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1983

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