Seiko Cal. 7178 - 221

The Seiko 7178-221 represents an important milestone in Seiko's 1994 lineup. With its 19mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-8ff074ab8ea9]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1994

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