Seiko Cal. 4542 - 625

This Quartz model from 1966 features a 42mm Two-Tone case. Powered by the 4542 caliber with 21j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-da51f4ea3a47]

Also known as: Sumo, Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1966

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