Side by side
Resco Custom C7: DLC Gen2, Gold UDT dialvsSeiko Prospex Sea The Black Series
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Custom C7: DLC Gen2, Gold UDT dial42mm
Prospex Sea The Black Series45mm
Power Reserve
Custom C7: DLC Gen2, Gold UDT dial40h
Prospex Sea The Black Series41h
Water Resistance
Custom C7: DLC Gen2, Gold UDT dial300m
Prospex Sea The Black Series200m
MSRP
Custom C7: DLC Gen2, Gold UDT dial$2,155
Prospex Sea The Black Series$765
Full specifications
Case
6 specsCategory
—
Diver
Diameter
42mm
45mm
Thickness
13mm
13.2mm
Lug-to-Lug
46mm
47.7mm
Lug Width
20mm
22mm
Water Resistance
300m
200m
Crystal & Dial
3 specsAR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Gold
Black
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Sellita SW200-1
4R36
Power Reserve
40h
41h
Jewels
25
24
Pricing
1 specsMSRP
$2,155
$765
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