Seiko Cal. 7172 - 546

The Seiko 7172-546 represents an important milestone in Seiko's 1988 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-db6ea853d28d]

Also known as: Sumo, World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1988

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