CaliberDB

Longines 340

Mechanical c. 1960 Self-winding (rotor)
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Notes

1960-1963 ball-bearing rotor with peripheral gear out of center, optionally, probably always with 5 ruby balls (not included in jewel number, cf. Longines 345) rather large balance ratchet on dial side, crown mechanism with rocker bar

Dimensions

Width27 lignes (60.91 mm)
Height4.55 mm
Stem height—
Hands (H × M × S)1.6 × 1 × 0.2 mm

Technical data

Beat rate19,800 vph (2.75 Hz)
Lift angle50 °
Power reserve43 h
Jewels—
Shock protection—
Mobile stud carrierNo

Complications

Self windingRotor
Date No
Day No
HackingNo
ChronographNo

Mainspring

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

Overview

TypeMechanical
Manufacturer Longines
Yearc. 1960
Family —
Clone of —

Related calibers

Documents

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Updated 7 days ago · 0 revisions