Seiko Cal. 4431 - 448

Seiko 4431-448

The Seiko 4431-448 represents an important milestone in Seiko's 1999 lineup. Powered by the 4431 caliber with 35j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-8f200a39ac08]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
43mm
Case Thickness
13.3mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Green
Jewels
35j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1999

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seikata-wm-8f200a39ac08