Christopher Ward C60 Sapphire EdgevsSeiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation

Owners widely praise the Christopher Ward C60 Sapphire Edge for its innovative deep blue sapphire dial, which is considered superior to other transparent dial executions, and its slim, ergonomic 42mm case. The lumed rubber strap is also a frequently highlighted feature, contributing to the watch's homogeneous luminosity and "damn cool" aesthetic. The watch is noted for offering incredible value, with a Sellita SW300-1 movement providing a 56-hour power reserve and 60ATM water resistance. However, one owner reported the sapphire dial cracked from the inside during regular use, and the brand denied warranty repair for this issue. Overall, owners and reviewers rate the Christopher Ward C60 Sapphire Edge highly for its striking dial execution and innovative features at its price point.

The Seiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation is noted for its refined, slimmed-down 39.5mm stainless steel case with a "super hard" coating and a box-shaped sapphire crystal. It offers 200 meters of water resistance and is powered by the slim Caliber 6L37 automatic movement, which has a 46-hour power reserve and an accuracy rating of -10/+15 seconds per day. Reviewers highlight its wearability and functionality as a dive watch, with one noting it as Seiko's thinnest diver ever at 12.3mm. However, concerns are raised about Seiko's continued reliance on the 62MAS design, with one reviewer wishing the Marinemaster remained a separate line, and the bracelet's end-links appearing mismatched in initial images. Its price of A$4,650 is considered high given its specifications compared to competitors.