The Sigma

A Playful Sum of Style

A Harold Pinchbeck Sigma wristwatch with a teal dial, brown leather strap, silver case, gold hands, and a date window showing the 22nd.
A Harold Pinchbeck Sigma wristwatch, white hour markers, and luminous hands, showing the time as 2:55, with a date display at 3 o'clock and a black strap.
A Harold Pinchbeck Sigma wristwatch with a teal face, brown leather strap, and silver case showing the time as 11:39, with a date display showing the 22nd.
A Harold Pinchbeck Sigma wristwatch with a teal face, stainless steel case, brown leather strap, and black bezel. The watch displays the time, date, and has the brand name "Pinchbeck" and text "England".
A Pinchbeck Sigma wristwatch with a teal face, brown leather band, and silver casing, displaying the time and date.

SIGMA - A Playful Sum of Style

Precision, Playfulness, and a Luminous Twist

The Sigma is where practicality meets personality. Named after the Greek letter Σ (Sigma), a symbol of sum and completeness, it brings together the elements that make everyday wear delightful: color, function, and craftsmanship.

Beyond its mathematical roots, “Sigma” has become a mark of precision, sophistication, and innovation, a subtle nod to something distinctive and elevated. That spirit is reflected in the Sigma’s luminous markers and hands, which glow in the dark, giving this small 36mm watch a signature personality that is both playful and uniquely recognisable.

The teal blue dial with soft peach markers adds a cheerful touch, while the off-white seconds hand provides a quiet contrast. Paired with a Tanner Bates conker leather strap, the Sigma blends Pinchbeck’s British heritage with contemporary design, making it a practical daytime companion and a collectible for the long term.

Designed as a partner to the Novum, Sigma will grow with the collection, each edition adding a new color story. Lighthearted, thoughtful, and unmistakably Pinchbeck, the Sigma proves that everyday elegance can be joyful and luminous in its own way.

▪ 36mm diameter watch ▪ Individually hand-built in England ▪ ETA 2824-2 Swiss automatic movement ▪ Exhibition caseback ▪ Tanner Bates handmade strap ▪

Delivery Time: 4 weeks

£1,799 including 20% VAT, and free UK delivery.

Buy now & pay later with flexible payments options from Klarna

£1799.00

    • Case: 316L polished stainless steel

    • Exhibition back (transparent glass)

    • Diameter: 36mm (excluding crown)

    • Height: 10.5mm

    • Glass: sapphire (for added scratch resistance)

    • Crown: screw-down

    • Dial: traditional, painted brass dial in blue with luminous number markers

    • Hands gold luminous and off white seconds hand

    • Hand-built in our workshops in England

    • Rigorously tested and certified on completion

    • Strap: Tanner Bates hand-cut and hand-stitched leather in conker

    • Leather watch wallet by Tanner Bates of Devon

    • Water resistance: 30 metres (3ATM).

    • ETA 2824-2 Swiss-made automatic 25-jewel calibre (mechanical, self-winding)

    • Tolerance: to within +/- 15 seconds per day

    • Regulated at assembly to within +/- 5 seconds per day

    • Power reserve of up to 36 hours

    • Vibrations: 28,800 per hour

  • Find out more about this watch on The Watchmaker’s Journal where we share more about style and stories.

Two wristwatches on a wooden surface. The left watch features a British flag design with black Roman numeral hour markers and a black strap with red stitching. The right watch has a blue face, silver bezel, and a brown leather strap, with the time sh
A Pinchbeck Sigma hand-made English wristwatch with a teal dial and brown leather strap, displaying the time as approximately 5:20, on a textured surface.
A Pinchbeck Sigma hand-made English wristwatch with a teal face, stainless steel case, and brown leather strap, displaying the time and date, resting on a textured surface.
A Harold Pinchbeck Sigma wristwatch with a teal face, gold hour and minute hands, and a cream second hand resting on a red leather wallet or case. The watch displays the date as 26 and has the brand name 'Pinchbeck' and 'England' on the face.
A Harold Pinchbeck Sigma wristwatch with a teal dial, stainless steel case, and hand-made Tanner Bates Conker leather strap resting on a textured surface.
Several Harold Pinchbeck luxury hand-made English wristwatches with various face designs and colored leather straps are displayed on a wooden surface, with some watches overlapping.

The Pinchbeck Watch Collection: