Genuine Omega® center wheel with cannon pinion, dia. of the wheel 15.18 mm, part 049.1, Omega® base cal. 21 NN Longines® dustproof crowns Howard mainspring # 329

Howard mainspring # 329

The date indicator is at the 6 o'clock position

black background

6 1/4" (16cm) Halfround Needle File cut 6 Swiss Pattern is a halfround file

Shape is flat - tapered 9mm - 5mm

Genuine Omega® center wheel with cannon pinion, dia. of the wheel 15.18 mm, part 049.1, Omega® base cal. 21 NN Longines® dustproof crowns Howard mainspring # 329Genuine Omega center wheel with cannon pinion, 12 teeth on the pinion, 80 teeth on the wheel, diameter of the wheel 15. 18 mm, part number 049. 1 Fits calibres: Omega 21 NN * Perrin Supply Ltd is independent of and not affiliated with or sponsored by Omega. Omega warranty does not apply to parts supplied by Perrin Supply Ltd.