Seiko Cal. 7055 - 637

The 7055-637 is a sought-after Solar piece from Seiko's golden era. With its 18mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-d2e529176501]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1969

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