Seiko Cal. 6231 - 443

Seiko 6231-443

The Seiko 6231-443 represents an important milestone in Seiko's 1965 lineup. Powered by the 6231 caliber with 28j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-e04cbe38bf63]

Also known as: Turtle, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
11.5mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
190m
Dial Color
White
Jewels
28j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1965

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