Which is bigger, the CWC Automatic Divers Watch Mk.2 Black or the Tornek-Rayville TR-660 Sapphire Non-date?

The CWC Automatic Divers Watch Mk.2 Black wears larger at 41mm versus 40mm for the Tornek-Rayville TR-660 Sapphire Non-date — a 1mm difference across the dial.

Which has better water resistance, the CWC Automatic Divers Watch Mk.2 Black or the Tornek-Rayville TR-660 Sapphire Non-date?

The CWC Automatic Divers Watch Mk.2 Black is rated to 300m versus 200m for the Tornek-Rayville TR-660 Sapphire Non-date.

Which has a longer power reserve, the CWC Automatic Divers Watch Mk.2 Black or the Tornek-Rayville TR-660 Sapphire Non-date?

The Tornek-Rayville TR-660 Sapphire Non-date carries a 50-hour power reserve against 40 hours on the CWC Automatic Divers Watch Mk.2 Black.

What movement does the CWC Automatic Divers Watch Mk.2 Black run compared to the Tornek-Rayville TR-660 Sapphire Non-date?

Both watches run automatic movements — the CWC Automatic Divers Watch Mk.2 Black uses the Sellita SW200-1 and the Tornek-Rayville TR-660 Sapphire Non-date uses the TMI NH38.

Side by side

CWC Automatic Divers Watch Mk.2 BlackvsTornek-Rayville TR-660 Sapphire Non-date

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

CWC Automatic Divers Watch Mk.2 Black

cwc-royal-navy-black-diver-automatic-mk-2

MSRP $1,249

Tornek-Rayville TR-660 Sapphire Non-date

tr-660-w-sapphire-inlay-1201-non-date-3167895

At a glance

10 of 29 specs differ

Diameter

Automatic Divers Watch Mk.2 Black41mm

TR-660 Sapphire Non-date40mm

Power Reserve

Automatic Divers Watch Mk.2 Black40h

TR-660 Sapphire Non-date50h

Water Resistance

Automatic Divers Watch Mk.2 Black300m

TR-660 Sapphire Non-date200m

MSRP

Automatic Divers Watch Mk.2 Black$1,249

TR-660 Sapphire Non-date—

Full specifications

Case

4 specs

Diameter

41mm

40mm

Thickness

12mm

14.7mm

Lug-to-Lug

47mm

48.5mm

Water Resistance

300m

200m

Crystal & Dial

3 specs

AR Coating

Inner

Yes

Dial Color

CWC Automatic Divers Watch Mk.2 Black (SF300 AS120)

Black

Lume

Super-LumiNova

Superluminova

Movement

2 specs

Caliber

Sellita SW200-1

TMI NH38

Power Reserve

40h

50h

Pricing

1 specs

MSRP

$1,249

—

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

CWC Automatic Divers Watch Mk.2 Black

Owners widely praise the CWC Automatic Divers Watch Mk.2 Black for its brushed chapter ring, precise 120-click bezel, clear sapphire crystal, excellent case finishing, and significantly improved lume. The watch is considered a terrific value with solid construction. Some owners express a preference for a matte finish for a more tool-like appearance, though polished versions offer a dressier look and easier scratch removal. On balance, owners rate the CWC Automatic Divers Watch Mk.2 Black highly for its tool-like features and excellent value.

From video reviewers

The bezel action is smooth. The price has increased due to popularity.

WatchUSeek·2

Tornek-Rayville TR-660 Sapphire Non-date

Owners widely praise the Tornek-Rayville TR-660 for its quality, good timekeeping, and suitability as a military diver reissue. The 40mm bead-blasted 316L stainless steel case, sapphire bezel inlay, and Arclite Super LumiNova are noted features, powered by a Japanese TMI NH38 automatic movement and water-resistant to 20 ATMs. Some owners suggest alternatives due to availability issues with the small-batch releases. Overall, owners rate the Tornek-Rayville TR-660 highly for its faithful reissue design and quality build at its price point.

WatchUSeek·3

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