GMT± Big Date
Ref. Nr. 223-88-7/62
Diameter 40 mm
Case Stainless steel
Dial Black guilloché, Arabic figures
Movement UN-22
Power-reserve Approx. 42 hours
Winding Self-winding
Water-resistant 100 meters
Crystal Sapphire crystals
Bracelet Stainless steel
Buckle type Folding clasp
GMT± Big Date
Ref. Nr. 223-88-7M
Diameter 40 mm
Case Stainless steel case
Dial Silverized guilloché dial
Movement UN-22
Power-reserve Approx. 42 hours
Winding Self-winding
Water-resistant 100 meters
Crystal Sapphire crystal
Bracelet Partly satinated steel bracelet
Buckle type Folding clasp
Dual Time 42 mm
Ref. Nr. 243-55-7/92
Diameter 42 mm
Case Stainless steel case
Dial Black dial
Movement UN-24
Power-reserve Approx. 42 hours
Winding Self-winding
Water-resistant 100 meters
Crystal Sapphire crystals
Bracelet Stainless steel bracelet
Buckle type Deployant clasp
前两款都是GMT＋bigdate（据说第一款是新款，第二款要停产了，我觉得第二款好看些但不背透） ； 后面一款是dual time ，这两款有什么区别，这3款香港到手价格大概是多少啊，谢谢大家帮忙推荐
