Seiko Chronograph 6138 0031 Mint Grade Auto SS Mens 1979 Japanese Watch Audemars Piguet Needs to be wound every

Needs to be wound every 30 hours

Automatic Precision 100 Jewels movement

sapphire crystal

any darker shadows on case dial and crystal are reflections from my camera lens

Seiko Chronograph 6138 0031 Mint Grade Auto SS Mens 1979 Japanese Watch Audemars Piguet Needs to be wound every21 Jewels Vintage Automatic Watch Speed Timer Chronograph Reference 6138 0031 Men's watch Year: 1979 Movement calibre 6138 Automatic Guaranteed Original Vintage Seiko Watch in excellent condition Dark shadows are reflections from camera lens Stainless Steel Size 42mm measurement excluding crown 44mm top to bottom of case 15mm thickness Beautiful Original Black Dial with Silver Sub Dials New generic brand genuine leather band and generic buckle