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Rolex

Oys­ter Per­pet­ual Air-king

Man­u­fac­turer:

Rolex SA, Rue Fran­co̧ is-dus­saud 3–7, 1211 Geneva 26, Switzer­land

Ref­er­ence num­ber:

116900

Func­tions:

Hours, min­utes, cen­tral sec­onds, en­hanced pro­tec­tion against mag­netism thanks to soft iron in­ner case

Move­ment:

Rolex 3131 based on Rolex 3130, au­to­matic, cer­ti­fied “Su­perla­tive Chronome­ter,” 28,800 vph, 48-hour power re­serve, Glucy­dur bal­ance with vari­able moment of in­er­tia, Parachrom blue hair­spring with Rolex ter­mi­nal curve, fine ad­just­ment via four gold Mi­crostella nuts, Kif shock ab­sorp­tion, 31 jew­els, di­am­e­ter = 28.5 mm, height = 5.37 mm

Case:

904L stain­less steel, sap­phire crys­tal above the dial, wa­ter re­sis­tant to 100 m

Bracelet and clasp:

904L solid stain­less-steel Oys­ter bracelet, Oys­ter­clasp fold­ing clasp with Ea­sylink ex­ten­sion (5 mm) on one side

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