Seiko X PADI Prospex 42mm Samurai Emerald Green Diver #SRPL53 vs Seiko Prospex Sea Samurai SRPL51

These are the same watch in different colors. Both are Seiko Prospex Samurai divers with the 4R35 movement, 41.7mm stainless case, 49.5mm lug-to-lug, Hardlex crystal, 200m diver's rating and 170g weight. The only real difference is the dial: the SRPL53 wears a PADI emerald-green gradation, the SRPL51 a blue dial. Buy the one whose color you will actually wear. Owners of the Samurai line praise the angular case and solid bracelet but note the Hardlex scratches more easily than sapphire and the 4R35 runs within Seiko's stated tolerance rather than at chronometer accuracy.

• Choose the Seiko PADI Samurai SRPL53 if you want the emerald-green gradation dial and the PADI association on a proven Samurai diver.
• Choose the Seiko Samurai SRPL51 if you prefer a classic blue dial that pairs with more straps and everyday clothing.