Seiko Cal. 7189 - 550

The Seiko 7189-550 represents an important milestone in Seiko's 1992 lineup. It features a Green dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-67d4e67c3065]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1992

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