Seiko Cal. 6231 - 287

Seiko 6231-287

The Seiko 6231-287 represents an important milestone in Seiko's 1976 lineup. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-6994491a374a]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
43mm
Case Thickness
9.5mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
100m
Dial Color
Burgundy
Jewels
24j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1976

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seikata-wm-6994491a374a