Brand: SeikoModel: https://www.watchesx.co.uk/Collection/hublot/ Seiko 5 Sports Mid-Field CollectionReference Number: SRPJ81, SRPJ83, SRPJ85, SRPJ87, and SRPJ89Diameter: 36mm (44.4mm lug-to-lug)Lug width: 18mmThickness: 12.5mmCase Material: Stainless steelDial Color: SRPJ81 (black); SRPJ83 (sand); SRPJ85 (black); SRPJ87 (silver); SRPJ89 (green)Crystal: Hardlex (mineral)Lume: Yes, LumiBriteWater https://www.replicauhrx.de/produkt-kategorie/audemars-piguet/ Resistance: 100 metersStrap/Bracelet: https://www.xreplicaorologi.it.com/ Nato-style strap; steel bracelet on SRPJ81