CaliberDB

Durowe 881

Mechanical c. 1969 Date Hacking
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Notes

1969- Movements of this kind are not self-starting. So when pulling the crown, the balance is locked in a position, from which it reliably starts when pushing the crown (Fig.3). am/pm display by dot below/above date numeral (Fig.4) Attention: With once setting the hands back and forth, the date is only advanced half a day. So the date can be set at noon and midnight, but care must be taken that the dot is finally in the correct position (cf. above).

Dimensions

Width—
Height5.5 mm
Stem height—
Hands (H × M × S)1.3 × 0.6 × 0.19 mm

Technical data

Beat rate21,600 vph (3 Hz)
Lift angle—
Power reserve—
Jewels—
Shock protection—
Mobile stud carrierNo

Complications

Self windingNo
Date Yes
Day No
HackingYes
ChronographNo

Mainspring

GR code—
Height—
Thickness—
Length—
Barrel diameter—

Overview

TypeMechanical
Manufacturer Durowe
Yearc. 1969
Family —
Clone of —

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Documents

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Updated 7 days ago · 0 revisions