Bulova Mens 100m Marine Star Chronograph 97B168.
Although the RRP is $550, it is usally around the $420 mark at Starbuy as far as I recall.
From the Marine Star Collection. Six-hand chronograph function with calendar, gold-tone stainless steel case with rotating dial ring to measure elapsed time, blue dial with gold-tone accents, flat mineral glass, screw-back case, blue leather and silicone strap with red stitch detail and three-piece buckle closure, and water resistance to 100 meters. Bulova 97B168 has a case size of 43mm with thickness of 11.8mm and a lug width of 22mm.
More detail: https://au.bulova.com/collections/marine-star-watches
All Bulova watches are shipped with a 3 year Global manufacturers warranty in official Bulova packaging.
More watches part of the weekend sale: https://starbuy.com.au/weekend-flash-sale/
Liberace approves