Side by side

Lum-Tec B73vsPraesidus Service Watch

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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B73
Lum-TecB73
MSRP $463
See the full B73
Service Watch
PraesidusService Watch
MSRP $259
See the full Service Watch
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At a glance

11 of 29 specs differ
Diameter
B7344mm
Service Watch42mm
Power Reserve
B73—
Service Watch—
Water Resistance
B73200m
Service Watch100m
MSRP
B73$463
Service Watch$259

Full specifications

Case

6 specs
Category
Sport
Field
Diameter
44mm
42mm
Lug-to-Lug
51.5mm
—
Lug Width
22mm
20mm
Material
316L Stainless Steel (DLC coated)
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

2 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
B73
Green

Movement

2 specs
Caliber
Ronda 515
Seiko NH35
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$463
$259
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