Seiko Cal. 4445 - 637

The 4445-637 is a sought-after Quartz piece from Seiko's golden era. With its 18mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-a3dc86350698]

Also known as: Sumo, Shogun

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1995

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