Dugena 1007

Automatic · 11.5‴ · Germany · 1955

Also known as: ETA 2451, ETA 2459, ETA 2471

Dimensions
26 mm
Height
5.30mm
Jewels
25
Power reserve
42h
Timegrapher
Beat rate
18,000bph
Frequency
2.5Hz

Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.

Movement
Movement type Automatic
Winding type Automatic (Rotor-Driven)
Setting type Stem Set (Crown Pull)
Escapement type Swiss Lever
Control type Balance Wheel
Regulator type Pinned Regulator (or Index Regulator)
Rotor type Central Rotor
Shock protection Incabloc
Specifications
Lignes 11.5‴
Shape Round
Complications Sweep Second
Hand count 3
Hand sizes 1.50 x 0.90 x 0.21mm
Further measures
Mounting Diameter (Dm): 25.6mm
Stem height (T): 1.85mm
Mounting Height (F): 1.4mm
Origin & References
Manufacturer Dugena
Base caliber ETA 2471
Country Germany
Launch year 1955
COSC certified No
Signature
ca. 1955: - Patented, D-RA; Incabloc (ETA 2459)
US import codes
Notes
Remarks: with same Dugena designation ETA 2451, ETA 2459, later ETA 2471 (cf. Dugena 3315)
Other data: balance staff: U2226 / U3136 for balance with/without screws stem: W2426, W3226 mainspring / battery: Zf869, 1.30 x 9.5 x 0.105 x 300mm
Ranfft mentioned about this caliber: There are variants with this quantity of jewels 17, 21, 25
Family

Series 985 - 1008

985: manual wind, 10.5"
986: manual wind, date
1007: automatic
1008: automatic, date
Related calibers
Dugena 1007 Dugena 1008 Dugena 985 Dugena 986