Seiko Cal. 5231 - 236

Seiko 5231-236

The 5231-236 is a sought-after Quartz piece from Seiko's golden era. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-04836b6c8f75]

Also known as: Tuna, Emperor

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
10.1mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Silver
Jewels
35j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1967

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