Seiko Cal. 6231 - 433

Seiko 6231-433

The Seiko 6231-433 represents an important milestone in Seiko's 1991 lineup. Powered by the 6231 caliber with 17j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-22ebd53965a5]

Also known as: Turtle, UFO

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
43mm
Case Thickness
8.6mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Black
Jewels
17j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1991

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