Helson has a similar watch but twice the price. Prometheus as well but that one is discontinued. I hope they hurry with their shipping. I've done some quick research and a tropic strap it will be!
* Benrus MIL-W-46374 re-issue | Borealis Estoril 300 DW | Borealis Sea Storm | Crepas L'océan 1200M | Deep Blue Juggernaut II | G. Gerlach Kosmonauta | G. Gerlach Navigator | G. Gerlach RWD-6 Pilot | H2O Orca Dive | Heimdallr 6105-8110 homage | Heimdallr Sea Shepherd | Heimdallr Sharkey 62MAS | Helberg CH1 | Helberg CH6 | Helberg CH8 | Helson Turtle | HMT Pilot | Marina Militare M-7040 | No-name Seventies LED watch | Seagull 1963 Pilot Chronograph | Seiko 5 7S25A | Straton Spéciale | Vostok Amphibia 1967 Diver *
* On the radar: Bulova Computron Reissue | JENNY Caribbean 300 | Squale 101 Atmos *