Steel, Luminous Dial
Chronograph Sommatore 5699 — Steel, Luminous Dial
Silver dial with luminous Arabic numerals, a red central elapsed-minute hand and round pushers. Running seconds are at nine and elapsed hours at three. Phillips describes its specimen as unpolished with original dial and luminous material; these are attributed assessments.
Phillips dates the specimen circa 1945; its archive extract records invoicing to Longines-Wittnauer on 12 August 1946. These dates do not establish the execution’s full production span.
Identifying details
- Central elapsed-minute counter
Separate central hands record elapsed seconds and elapsed minutes; this is not a split-seconds display.
- Twelve-hour counter
The right subsidiary register records elapsed hours.
Variants of 5699
Reference overview →| Variant | Production |
|---|---|
| Steel, Luminous DialCurrent | Undated |
| Steel, Luminous Dial · TL Schmidt Engraved Caseback | Undated |
Case & movement
- Reference
- 5699
- Production
- Undated
- Case serials
- Case material
- Stainless steel
- Case diameter
- 39.5 mm
- Movement
- Manual winding
- Caliber
- Longines 13ZN-12 — 13ZN-12 central-minute configuration; source documents may abbreviate it to 13ZN. No flyback or split-seconds function asserted.
Dial, bezel & hands
Movement
Longines 13ZN-12
Central-minute configuration of the manually wound 13ZN family, with separate central elapsed-second and elapsed-minute hands plus a twelve-hour register. Specialist sources distinguish it from split-seconds chronographs and state that it lacks flyback; the base 13ZN name alone does not establish this configuration.