Seiko Cal. 6231 - 440

Seiko 6231-440

The Seiko 6231-440 represents an important milestone in Seiko's 1981 lineup. Powered by the 6231 caliber with 23j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-2153d6e56025]

Also known as: Silverwave, Sportsmatic

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
41mm
Case Thickness
15.3mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
200m
Dial Color
Navy
Jewels
23j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1981

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seikata-wm-2153d6e56025