Seiko Cal. 4528 - 340

This Solar model from 1985 features a 42mm Titanium case. With its 21mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-ebd635fb3ac0]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1985

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