Leaderboard

Build another new 1680. Base watch is a JKF but there is not really much what needed of the Rep. I reshaped the whole Case, thinned and drilled the Lugs, opened the Cg's. Installed a gen T-127, gen Tube and Crown, The Dial was horrible so I took a Yuki one with correct hands. Datewheel is open 6&9. Modded the Inlay to look more matte. The Bracelet is the Factory 93150. This came out. Gesendet von meinem 2107113SG mit Tapatalk

I am inclined to agree that you may have just about nailed it! I was contemplating on the click and the escape wheel! The movement ran 24 hours really well on a close to full manual wind ( just with enough turns of the crown to avoid the slip) without the automatic assembly . As soon as I wound it fully with an extra couple of turns, it stopped just a few hours later ! I then jiggled the balance and seemed as it had locked as if Impulse jewel had misaligned, but I then realised it wasn’t the case ! I noticed that it had just enough swing to slightly rock the pallet fork as balance wheel was swinging very rapidly backwards and forth with no real action! I then jiggled the escape wheel with a fine oiler and bingo it fired uo! So my guess is that the impulse jewel never got out of line at all as if it were the case, then the movement would not have run! Right? Unless there is something I do not know about impulse jewels and the balance wheel/pallet fork combo! Your other information has indirectly helped me solve an issue with two other movements which had me baffled for months if not close to years! Great suggestions and highly appreciated! Something you would not get on some watchmaking forums! A world of thanks!

The reference was to build a 5513 like new old stock. Ok here we go[emoji6] Gesendet von meinem 2107113SG mit Tapatalk

Wristshot and smal update. Gen 580 Endlinks now installed.[emoji6] Gesendet von meinem 2107113SG mit Tapatalk

Some other shots. Gesendet von meinem 2107113SG mit Tapatalk

Specs: JKF Base watch Drilled the Lugholes to 1,2mm Reshaped the whole Case to make the Lugs thinner, opened the CG's Replaced the ugly domed crystal to flat T-19. Installed a 703 Tube and Vintage 703 Crown Dial is Yuki 200m first underline Hands also from Yuki. Modded the existing Inlay to look matte. Relumed the pearl to white Lume. 580 Endlinks Fat 2mm Springbars Brushed the 93150 Bracelet That's it[emoji6] Gesendet von meinem 2107113SG mit Tapatalk