WatchReference : H76726130
Caliber : H-21-Si
Collection : Khaki Aviation
Movement : Automatic
Case size : 44mm
Dial color : Black
Case material : Stainless steel
Crystal : Sapphire
Lug width : 22mm
Power reserve : 60-hour power reserve
Water Resistance : 10 bar (100m)/145 psi (328ft)
Open Case Back : Yes
Screw Down Crown : Yes
Bracelet/StrapStrap reference : H6057671021
Strap type : Stainless steel
Buckle type : Folding clasp
Buckle width : 22mm
The H-21-Si is an automatic chronograph movement featuring a state-of-the-art balance spring made from the anti-magnetic material silicon for enhanced resistance to extreme atmospheric conditions. With an extended 60-hour power reserve, this powerful caliber reliably keeps and measures time via two or three sub dials at 6, 9 and/or 12 o’clock, and start/stop and reset pushers on the side.
Delivery & Return
We offer free delivery for all orders. If you would like your order to arrive sooner you can select “Next-Day Delivery” (rates vary by location). To find out more information about our delivery options please visit our Shipping Policy.
We offer returns within 14 days from delivery. For more information, please visit our Return Policy.
*Due to public health restrictions, we may experience delays in processing returns. If you have an item that you would like to return, please contact our customer service department at 1-800-234-8463 or Hamilton.US@swatchgroup.com for additional information.