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Omega
Speedmaster Perpetual Calendar Yellow Gold / Champagne /
Reference 3650.10.20 (aka: 36501020)
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The Omega Speedmaster Perpetual Calendar is a limited edition of 50 pieces created for the Japanese market in 1991, honoring the 700th anniversary of Switzerland. It is powered by caliber 1160, which is housed in a yellow gold case of 39mm. It was available with either a yellow gold bracelet or a brown alligator strap; though the main image is supplied by Omega, it is believed that this strap is not original.
- Brand
- Omega
- Model
- Speedmaster Perpetual Calendar Yellow Gold / Champagne /
- Reference
- 3650.10.20 (aka: 36501020)
- Category
- Speedmaster (Non-Moonwatch)
- Movement
- Omega caliber 1160 Hours, Minutes, Small Seconds | Date, Day, Leap Year, Month, Perpetual Calendar | Chronograph | Moonphase
- Case material
- Yellow Gold
- Case diameter
- 39 mm
- Dial color
- Silver
- Crystal
- Sapphire
- Case back
- Closed
- Water resistance
- 100 m
- Lugs
- 18
- Complications
- Date, Day, Chronograph, Moon Phase, Perpetual Calendar