Omega® Crown (Waterproof, Tap 1.00 mm), steel, square, diameter 4.50 mm, see all case numbers in description LeCoultre® K490 This is an 8 day

This is an 8 day bim bam movement with 1/2 hour strike

27 x 1050 (41")

O-ring case back gasket to fit Omega® case numbers: 5160001

Fits Omega® case numbers: 2426

part number 3145

Omega® Crown (Waterproof, Tap 1.00 mm), steel, square, diameter 4.50 mm, see all case numbers in description LeCoultre® K490 This is an 8 dayOmega Crown (Waterproof, Tap 1. 00 mm), steel, square, diameter 4. 50 mm, see all case numbers in description Omega Steel Waterproof Crown, square, diameter 4. 50 mm, fits tube 2. 00 mm, total height 2. 80 mm, flush pipe, tap 1. 00 mm. Fits Omega case numbers: 1450040, 1960016, 1960054, 1960054SP, 1960065, 1980001, 1980027, 1980028, 1980042, 1980048, 1980059, 1980059169, 1950065169, 1980066, 3450803, 3960811 *Perrin Supply Ltd is independent of and