Stainless Steel Watch Case Set fit Seagull TY2901,2902,2903 & ST1901,1902,1903 Speedmaster Chronograph
Case Material : 316L Stainless Steel Case with 4mm Dome Crystal (Thicken)
Crown Material : Stainless Steel Screw Down Crown
Case Back : Stainless Steel Screw Down Display Case Back
Case Size :Appox. 41.5mm Exclude Crown
Thickness : Appox. 15.5mm
Size of Lugend : 20mm
Diameter of bezel is 40mm
Inside Diameter of case is 32mm
Internal Shoulder diameter is 29mm for visible dial
Internal Height of Case from shoulder edge is 6mm
Height Between center Stem Hole and internal Shoulder 3mm
Internal Height between Crystal and shoulder 3mm
Back Cover height which includes A Thread is 4mm
Back Cover Height excluding The A thread is 2.7mm
Diameter of Case Back Cover is, 36.8mm
Diameter of Case Back Thread is 33.3mm
Diameter of crown is 5.8mm
Crystal Diameter 31.8mm
Water Resistant : Tested 5 ATM
2 Spring bars & Movement Holder are included
( Please double check your Movement Model before you buy this item ! )
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