Seiko Cal. 0731 - 550

Seiko 0731-550

This Automatic model from 1997 features a 43mm Stainless Steel case. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-af12c335d223]

Also known as: Sumo, Flighty

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
8.8mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Green
Jewels
30j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1997

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seikata-wm-af12c335d223