Seiko Cal. 4548 - 681

The Seiko 4548-681 represents an important milestone in Seiko's 1981 lineup. With its 18mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-1e35fdd52869]

Also known as: Sumo, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1981

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