Seiko Cal. 7090 - 331

Seiko 7090-331

Released in 1975, the Cal. 7090 with design code 331 was part of Seiko's domestic market collection. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-0b4fc80f3532]

Also known as: Crown, Baby Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
13.8mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1975

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