Seiko Cal. 7181 - 363

The Seiko 7181-363 represents an important milestone in Seiko's 1998 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-0a4de317ebf8]

Also known as: Monster, Sumo

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1998

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