Seiko Cal. 5691 - 357

Seiko 5691-357

This Quartz model from 1986 features a 38mm Hardlex-Coated Steel case. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-41a89dfdff88]

Also known as: Sumo, Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
13.2mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Black
Jewels
19j
Frequency
28,800 bph
Power Reserve
66 hours
Year
1986

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