Seiko Cal. 6657 - 455

This Solar model from 1988 features a 40mm Titanium case. With its 20mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-814d41cff6f8]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1988

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