Versus
REC Watches P51-03 vs REC Watches X4009 Semtra Black
The Sensei's verdict
P51-03 2—2 X4009 Semtra Black
The P51-03 is the value play at $1,695 ($800 less), while the X4009 Semtra Black wears smaller at 41 mm.
Verdict & value
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Sensei Score
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$1,695$800 less
Price
$2,495
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Originality
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Movement
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Type
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Calibre
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Tier
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Power reserve
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Case & on the wrist
44 mm
Diameter
41 mm
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Lug-to-lug
48.7 mm
10.8 mm2.2 mm thinner
Thickness
13 mm
30 m
Water resistance
100 m
316L stainless steel
Case material
316L stainless steel, aluminum
Dial, crystal & details
metallic
Dial
black
Sapphire
Crystal
Sapphire
No
Lume
Yes (Super-LumiNova)