Seagull ST36
Caliber: Seagull ST36 (copy of ETA/Unitas 6497-2)
Size: 16.5'''
Movement Height: 4.5mm
Running Time: 53 hours
No. Of Jewels: 17
Frequency: 21,600 A/h
Lift Angle: 44.0
My First Class Watch Movement - Seagull ST36
We were each given a brand new Seagull ST36 watch at our first class. Great movement to start with due to it's very large size. It's also a cheaper clone of the popular ETA 6497-2 movement.
Display Case Back
Always nice to be able to see the movement in action without having to remove the Case Back.
Case Back Off
Used a Case Holder to secure the watch while I used a Sticky Friction Ball to remove the Screw Off Case Back.
Movement Removed From Case
Removed the movement from the Case.
Hands Removed
Removed the Hour, Minute and Seconds Hands using a Dial Protector and Hand Levers.
Bridge Side
The heart of the movement in all its glory.
Dial Removed
Case Back, Case, Movement Ring and Dial all removed.
Dial Side Exposed
Keyless Work visible and ready to be removed.
Removal of Keyless Work (1)
Removed the Hour Wheel, Cannon Pinion, Cover Plate and Setting Lever Spring, Yoke Spring and Yoke. Be wary of the Yoke Spring, desperate to fly into oblivion!
Removal of Keyless Work (2)
Removed the Minute Wheel, Intermediate Wheel, Setting Wheel, Wetting Lever, Clutch (Castle Wheel), Winding Pinion and Stem.
Removal of Gear Train (1)
Removed the Balance Bridge. Make sure this is stored upside down with the Balance Spring facing up and in a safe place.
Removal of Gear Train (2)
Removed the Pallet Bridge, Pallet Fork, Crown Wheel, Ratchet Wheel and Click Wheel.
Removal of Gear Train (3)
Removed the Barrel Bridge.
Removal of Gear Train (4)
Removed the Train Wheel Bridge.
Removal of Gear Train (5)
Removed the Centre Wheel and Barrel.
Barrel (1)
Mainspring Barrel.
Barrel (2)
Mainspring Barrel.
Barrel (3)
Mainspring Barrel with the Barrel Cover removed.
Barrel (4)
Mainspring and Arbour removed from the Barrel.
Removal of Gear Train (6)
Removed the Fourth Wheel.
Removal of Gear Train (7)
Removed the Third Wheel and Escape Wheel.
Movement completely striped.
Movement completely striped.
Parts Container (1)
All the striped parts from the movement.
Parts Container (2)
Movement Bridges.
Parts Cleaning
Parts added to the cleaning basket ready to be put through the cleaning machine.
Cleaned Main Plate - Bridge Side
Main Plate shiny clean and ready for reassembly.
Main Plate - Dial Side
Cap Jewel re-set back in the Main Plate.
Keyless Work Assembly (1)
Added the Yoke and Yoke Spring back on to the Main Plate.
Keyless Work Assembly (2)
Reassembled the Minute Wheel, Intermediate Wheel, Setting Wheel, Wetting Lever, Clutch (Castle Wheel), Winding Pinion, Stem, Setting Lever Spring and
Cover Plate.
Cover Plate.
Gear Train Assembly (1)
Reassembled the Centre Wheel, Fourth Wheel, Third Wheel and Escape Wheel.
Gear Train Assembly (2)
Added the Train Wheel Bridge.
Gear Train Assembly (3)
Added the Mainspring Barrel.
Gear Train Assembly (4)
Added the Barrel Bridge.
Gear Train Assembly (5)
Reassembled the Crown Wheel, Ratchet Wheel, Click Spring and Click Wheel.
Lyre Spring
Managed to snap the Lyre Spring by applying too much pressure while trying to add it the the Balance Cap Jewel.
Donor Seagull ST36 Movement
Fortunately I had a donor movement to hand to replace the broken Lyre Spring.
Reassembled Seagull ST36 Movement
Cleaned, reassembled, oiled and working. My first completed movement!