New Mini 1 7/16" Round Mini Quartz Fit-up Movement This is a brand new 1 7/16" (front diameter) round fit-up movement with a glass lens. Runs on 1 small watch size battery (battery number 377/376) and is included with purchase. The rear diameter is 1-3/8" (35mm) so make sure your hole is 1/16" to 1/8" larger than this! These movements require a recessed depth of approx. 1/4" inside your clock. High quality alloy case. Stainless steel back with exclusive rubber battery hatch cover that easily comes off to change the battery (see pictures below). The MF-102FR does not have a easy access battery hole, it has a regular stainless steel back that has to be removed to change the battery. The internal movement on all of these inserts is made by Seiko. There are many styles below to choose from (please see the pictures above for reference): MF-100SWA - Silver bezel, white dial, Arabic numbers. MF-100WA - Gold bezel, white dial, Arabic numbers. MF-100WR - Gold bezel, white dial, Roman numbers. MF-101FA- Gold bezel, fancy dial, Arabic numbers. MF-102FR - Gold bezel, fancy dial, Roman numbers. MF-104WA - Gold bezel, white dial, Arabic numbers. MF-105WA - Gold bezel, white dial, Arabic numbers. MF-106GA - Gold bezel, gold dial, Arabic numbers. MF-107WR - Gold bezel, white dial, Roman numbers. MF-108GR - Gold bezel, gold dial, Roman numbers. MF-110SWA - Silver bezel, white dial, Arabic numbers. MF-110SWR - Silver bezel, white dial, Roman numbers. We do combine purchases to save on shipping as long as they are made on the same day. Please email us for combined shipping rates on multiple items and allow 24 hours for us to send you a combined invoice with your total. We do ship worldwide and always TRY to ship the same day payment is received. RETURN POLICY: Items must be returned in original condition or they will not be accepted. An exchange or refund of the purchase price will be given (your choice). Shipping is non-refundable unless the mistake is ours. Make sure you order the correct size on your items so you don't have to send them back or exchange them. We are more than willing to help you get what you need. Please call or email us with any concerns or questions before leaving feedback. We care about our customers and will work with you on any issue. If you refuse to communicate with us we will have to block you from buying from us again. Thank you.