Seiko Automatic Diver With Blue Dial and Rubber Strap

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I've been thinking about buying a beater watch. I would like something low-key with a rubber strap, but I still want a reliable automatic watch. I like blue dials and a few new Seikos have come out in the past year. Does anyone have an opinion or experience with any of these three watches? Or do you suggest any other watches?

The first two Seikos have the 6R15 movement and sapphire glass (SBDC063/SPB079J1 and SBDC053/SPB053J1).

The third picture is the new mini-turtle SRPC39K1 with the 4R36 and hardlex.

https://www.seikowatches.com/global-...ospex/SRPC39K1
https://www.seikowatches.com/us-en/p...ospex/SPB079J1
https://www.seikowatches.com/us-en/p...ospex/SPB053J1