Seiko Laurel 4S15-0020 Lham601,Seiko LHAM601; 4S15-0020 ,WTS] Seiko “Laurel” LHAM600 & LHAM601, c. 1995. The Unofficial Alpinists. 4S15 ,Seiko Laurel Reference LHAM601 from 1991. One of my favourite models from the 90's with classy typography and dial layout, featuring a warm mint green dial beautifully contrasted by gold hands and,Seiko Laurel Navy Dial 4S15-0020 | eBay