Wall Clock - Calor 34.07 – Space Age Tuning Fork Wall Clock – JECO Japan / Lic. Bulova – 1970s Space Age - PVC - 1960-1970 - Diapason Electronic

Vintage CALOR “Diapason Electronic” wall clock, model 34.07, fitted with an original Japanese JECO electronic tuning-fork movement manufactured under Bulova licence.
A striking and increasingly uncommon example of early electronic horology from the transitional period between conventional mechanical clocks and the later quartz era.
The clock has a strong 1970s Space Age / Pop aesthetic, with a softly rounded square case, warm cream / champagne-beige finish, vivid orange dial, large white Arabic numerals and cream hands with fine red detailing.
The dial is marked:
CALOR
diapason electronic
The internal mechanism is particularly interesting. It is an original JECO Co. Ltd. Japan electronic tuning-fork movement, clearly marked:
LIC. BULOVA
and carrying US patent references visible on the movement.
JECO was an established Japanese manufacturer of electric and electronic clock mechanisms, and its tuning-fork movements belong to the relatively short-lived but technically fascinating generation of electronic timekeeping developed before quartz became dominant.
Unlike a conventional quartz clock, this mechanism uses an electronic tuning-fork regulating system, making the clock considerably more interesting from a technical and collecting point of view.
The internal/rear casing also carries the marking “PVC 180”, which appears to be a manufacturing or material reference rather than a separate brand designation.
Condition and operation
The clock has been tested and is working correctly.
It runs continuously and keeps time accurately during testing.
The movement is powered by a battery.
Battery is NOT included in the sale.
The clock is in good vintage condition, with signs of age and use consistent with its period.
Please note:
- some scratches and surface marks are present on the transparent plastic front cover;
- two of the retaining clips/tabs of the transparent front cover are partially damaged/broken;
- despite this, the front cover remains securely and stably in position during normal use;
- the cream/champagne case shows light age-related wear;
- the orange dial remains visually attractive and retains a strong authentic 1970s appearance.
Please study all photographs carefully, as they form an integral part of the description and clearly show the cosmetic condition, internal movement, markings and retaining clips.
Specifications
Brand: Calor
Model: 34.07
Type: Wall clock
Movement: Electronic tuning fork / diapason
Movement manufacturer: JECO Co. Ltd.
Country of movement manufacture: Japan
Movement marking: Lic. Bulova
Additional internal marking: PVC 180
Period: circa 1970s
Style: Space Age / Pop / Retro electronic design
Colour: Cream/champagne case with orange dial
Dimensions: approx. 24 × 24 × 3 cm
Power: Battery operated
Battery: Not included
Condition: Working vintage condition
A very decorative 1970s wall clock with the added appeal of a genuine JECO tuning-fork electronic movement, considerably more interesting than the later conventional quartz mechanisms commonly found in vintage wall clocks.
The items are offered in original, vintage, and pre-owned, and is described accurately and in good faith.

Please remember that this is an original vintage item and not a modern precision timepiece. Small variations in timekeeping may occur due to age, temperature, transport and positioning.
The clock will be carefully packed and protected for transport.
Battery is not included.
After delivery, please install a new good-quality battery of the correct type and allow the clock some time to settle after transport.
Any cosmetic imperfections, signs of age, repairs or functional observations known to the seller are described and/or shown in the photographs.
The photographs are an integral part of the description and should be examined carefully before bidding.
Due to the age and nature of vintage mechanisms, long-term accuracy and future performance cannot be guaranteed, even when the clock is fully operational at the time of testing and shipment. The buyer is responsible for providing a correct shipping address and for collecting the parcel within the carrier’s specified timeframe. In case of non-collection, refusal of delivery, or incorrect address, Catawiki’s applicable procedures and conditions will apply.By placing a bid, the buyer confirms that they have carefully read the description and reviewed all images.