The Greubel Forsey Signature 1 is a timepiece introduced by Greubel Forsey on the 2016 SIHH Geneva Watch Fair. It is the first part in the " Signature" series and Greubel Forsey's entry level model.
Listed here are its detailed specifications:
* **Design: ** The truth has a 41. 4 millimeter diameter and a thickness regarding 11. 7 mm, featuring symmetrical design. The time and minute dials are generally arranged in a large off-center layout, made of white enameled surface, with blued steel hours and minute hands inside a dagger shape. The face has a chamfered finish. A tiny seconds subdial is located from 8 o'clock, below which can be the balance wheel and balance bridge.
2. **Movement: ** Powered from the GFS1 manual-winding movement, manufactured by Greubel Forsey over six years, this movement symbolizes the pinnacle of movement finishing. The particular movement features a massive 12. 6 mm diameter equilibrium wheel, with an in-house hairspring oscillating at 18, 000 vph. Both the balance tyre and balance bridge usually are finished with a top-grade dark-colored mirror polish. The escapement is located on the side of the watch dial, with the gear train plainly visible. The mainspring barrel or clip is coaxially fitted with hour or so and minute ratchet things, secured by a delicate three-arm bridge.
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