Neutron BK

The Pinion Neutron® features a galvanic-black electroplated dial with a detailed guilloché centre and warm Super-Luminova ‘old radium’ batons. Housed in a 38mm stainless steel case and powered by the reliable Swiss Sellita SW200-1 automatic movement, each watch is designed, finished, assembled and tested in England.

Note: We offer a movement upgrade on this watch to a La Joux-Perret G100 movement with 68 hour power reserve. Not sure what movement to choose? see our help page for more information.

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Perfectly Charged

Designed and built in England, the Neutron is a beautifully balanced 38mm automatic watch that combines Swiss accuracy with British craftsmanship. Each piece is made in small batches and carefully assembled by hand, resulting in a watch that feels as personal as it looks.

Big on details

The Neutron’s dial is its standout feature, with a detailed guilloche centre framed by a brushed outer ring and finished in rich electroplated tones of galvanic black.

Polished nickel numerals are applied by hand, while printed batons with Super LumiNova add a subtle glow in low light. In true Pinion style, the logo sits discreetly on the inner rehaut, letting the guilloché take centre stage.

Grooved hands

The Neutron’s diamond-cut brass hands have a polished nickel finish and a subtle matt groove running through the centre. It’s a small detail, but one that catches the light beautifully. The hands are filled with SuperLuminova so the watch remains legible long after dark.

Dependable movement

Inside the Neutron beats the Swiss-made Sellita SW200-1 automatic movement, a proven and reliable engine with a 38-hour power reserve.

Each movement is regulated in-house across three positions to within five seconds a day, ensuring accuracy you can rely on.

Made in small batches

Like every Pinion watch, the Neutron is produced in small numbers and built by hand in England. This approach means every watch receives the care and attention it deserves before it leaves the workshop.

Specifications

Dimensions

Diameter
38mm (excluding crown)

Length
45mm

Strap
20mm

Depth
11mm (including glass)

Weight
55g (75g with leather strap)

Movement

Sellita SW200-1
Automatic (self-winding mechanism)
28’800 vibrations per hour (4 Hz)
26 Jewels
40 hours (typical) power reserve

Date
All models have the date wheel and setting mechanism removed

Accuracy
Regulated in-house to 3-positions (dial-up, dial-down, crown-down)
+/- 5 seconds to +/- 15 seconds per day accuracy

Case

Water resistance
100 metres / 10 ATM

Material
Stainless steel, brushed finish

Case back
Solid engraved case back, brushed finish

Crown
Push-down with double o-ring fitting

Glass
Domed sapphire with anti-reflective coating (inside only)

Details

Dial
Electroplated with circular brushed finish. Central stamped guilloché style decoration. Polished applied numerals.

Hands
Coated brass hands in polished finish with contrasting etched groove (hour, minutes)

Luminance
Swiss Super-LumiNova ‘old radium’ applied to dial batons and hands with green luminance

Dimensions 48 × 39 × 11 cm

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