Chunky automatic winding Cal. 661 Size is 17mm wide excluding the crown. The lugs are 8mm. The crystal has been polished to its original condition. The strap is a new aftermarket one. Wrist size up to approximately 15.5cm. Please read the enclosed instruction manual for details on usage precautions before use. 【About Overhaul】 It may seem old-fashioned, but I find fully automatic methods unsettling, so I incorporate a hand-washing process. Disassembly → Hand washing → Ultrasonic cleaning → Final cleaning → Epilam treatment → Assembly → Accuracy adjustment. The mainspring barrel is highly likely to suffer from the surrounding area due to the aging of the grease. Therefore, I do not use grease. Please refrain from purchasing if you dislike this method. The epilam solution uses stearic acid. The movement may appear to have a white film, but that is the epilam film. Epilam solution prevents oil from splattering and has anti-corrosion and lubricating effects, and is a recommended treatment by each manufacturer. It will better protect the movement until the next overhaul. For the next maintenance, if there is no significant daily variation or discomfort, we recommend doing it in 7-10 years. Depending on the specifications of the item, I adjust it to be within 15 seconds when the mainspring is well wound. Of course, it depends on the winding of the mainspring and weather conditions. Therefore, the daily variation is within 60 seconds. I handle watches that are about 50 years old. During operation checks, sudden failures or large daily variations may occur depending on the usage conditions. In the case of initial defects (non-operation, damage upon arrival), we will accept returns. Please contact us within 3 days of receiving the product. Except for the above initial defects, we do not provide any warranty for operation, accuracy, or free repairs unless otherwise specified, so please understand this before purchasing. If you wish to have a warranty, please contact our workshop directly. Shipping is via Sagawa Express. Please feel free to send a message if you have any questions.