This handsome vintage Zentena is a wonderful example of the understated Swiss mechanical watches produced during the 1960s and 1970s. Its clean white dial, faceted gold-tone indices, slim baton hands, and crosshair small-seconds design give it a beautifully restrained vintage appearance.
The dial is particularly elegant, with the crosshair layout leading the eye toward the subsidiary seconds dial at 6 o'clock. The faceted gold-tone markers catch the light beautifully, while the small luminous dots and “T SWISS MADE T” marking indicate the use of tritium lume.
Inside is the real star of the watch: a 17-jewel Unitas 6310M manual-winding movement. Unitas was a highly respected Swiss movement manufacturer, particularly known for producing robust, reliable calibres used in watches ranging from military-style wristwatches to pocket watches.
The Unitas 6310 belongs to the famous 6300/6310 family often referred to as the “Wehrmachtswerk,” or Army Movement. Its large 13-ligne construction, measuring approximately 29.4mm, was designed with durability and reliability in mind. The oversized architecture makes the movement particularly robust and gives it a wonderful presence when viewed through the caseback.
The movement operates at 18,000 vibrations per hour and offers approximately 47 hours of power reserve when fully wound. The 17-jewel layout uses jewelled bearings at key points throughout the movement to reduce friction and wear, while the traditional Swiss lever escapement provides the dependable mechanical architecture for which Unitas became known.
The 6310M designation is visible beneath the balance, along with the Unitas trademark, providing a particularly nice connection between the watch and its Swiss movement manufacturer.
Zentena itself belongs to the fascinating world of smaller Swiss watch brands and dial names that flourished during this period. Rather than competing with the enormous names of Swiss watchmaking, companies like Zentena could source respected Swiss movements such as Unitas and combine them with attractive cases and dials to create reliable, accessible mechanical watches.
And aesthetically, this one is all about restraint. The clean white dial, gold-tone faceted markers, thin hands, crosshair design and small seconds create a classic dress-watch appearance, while the enormous Unitas movement underneath gives it a surprisingly rugged mechanical heart.
It is a great contrast between elegant exterior and robust engineering—a refined-looking dress watch powered by a movement originally designed around durability and reliability.
A beautifully understated vintage Swiss watch with one of Unitas's most interesting manual-winding movements underneath: a 17-jewel 6310M “Wehrmachtswerk,” elegant crosshair dial, gold-tone indices and genuine mid-century character.
This handsome vintage Zentena is a wonderful example of the understated Swiss mechanical watches produced during the 1960s and 1970s. Its clean white dial, faceted gold-tone indices, slim baton hands, and crosshair small-seconds design give it a beautifully restrained vintage appearance.
The dial is particularly elegant, with the crosshair layout leading the eye toward the subsidiary seconds dial at 6 o'clock. The faceted gold-tone markers catch the light beautifully, while the small luminous dots and “T SWISS MADE T” marking indicate the use of tritium lume.
Inside is the real star of the watch: a 17-jewel Unitas 6310M manual-winding movement. Unitas was a highly respected Swiss movement manufacturer, particularly known for producing robust, reliable calibres used in watches ranging from military-style wristwatches to pocket watches.
The Unitas 6310 belongs to the famous 6300/6310 family often referred to as the “Wehrmachtswerk,” or Army Movement. Its large 13-ligne construction, measuring approximately 29.4mm, was designed with durability and reliability in mind. The oversized architecture makes the movement particularly robust and gives it a wonderful presence when viewed through the caseback.
The movement operates at 18,000 vibrations per hour and offers approximately 47 hours of power reserve when fully wound. The 17-jewel layout uses jewelled bearings at key points throughout the movement to reduce friction and wear, while the traditional Swiss lever escapement provides the dependable mechanical architecture for which Unitas became known.
The 6310M designation is visible beneath the balance, along with the Unitas trademark, providing a particularly nice connection between the watch and its Swiss movement manufacturer.
Zentena itself belongs to the fascinating world of smaller Swiss watch brands and dial names that flourished during this period. Rather than competing with the enormous names of Swiss watchmaking, companies like Zentena could source respected Swiss movements such as Unitas and combine them with attractive cases and dials to create reliable, accessible mechanical watches.
And aesthetically, this one is all about restraint. The clean white dial, gold-tone faceted markers, thin hands, crosshair design and small seconds create a classic dress-watch appearance, while the enormous Unitas movement underneath gives it a surprisingly rugged mechanical heart.
It is a great contrast between elegant exterior and robust engineering—a refined-looking dress watch powered by a movement originally designed around durability and reliability.
A beautifully understated vintage Swiss watch with one of Unitas's most interesting manual-winding movements underneath: a 17-jewel 6310M “Wehrmachtswerk,” elegant crosshair dial, gold-tone indices and genuine mid-century character.