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Sinn 434 St Mother-of-pearl W

Sinn 434 St Mother-of-pearl W

Model: 434.01

The Sinn 434 St Mother-of-pearl W Ladies Quartz Luxury watch. Featuring a 34mm Stainless Steel case, impressive Mother of pearl dial, 10 ATM / 100m water resistance, and outstanding precision, this timepiece showcases the premium design and quality that independent German watchmaker Sinn is renowned for.


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NB: All watches are delivered on standard ‘Medium-sized’ bands (suitable for approx.170-200mm wrist sizes). If you require a shorter or longer band please let us know. If you are not sure, simply let us know your wrist circumference and we will make sure you get the correct length.

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Information & Media

Sinn 434 St Mother-of-pearl W



Sinn’s 434 St Mother-of-Pearl W ladies’ watch is a real piece of jewellery, perfect in combination with many items of clothing. This distinctly feminine and elegant timepiece is an extraordinary blend of purity and timelessness. A design feature of this watch is created by the hours with rhodium-plated Roman numerals, which have been meticulously attached by hand. In combination with the shimmering white mother-of-pearl dial, this gives the ever-so-subtle impression of a classically beautiful ladies’ watch.

Sinn’s high technical standards also meet today’s expectations of a ladies’ watch.

Sinn’s (Q)-Technology – Shielding against electromagnetic pulses

What is electromagnetic radiation?

In analogue quartz movements, the train wheel is driven by a so-called stepper motor. Rather than turning continuously, this little electronic motor only rotates every second by a small degree and in doing so, generates an electromagnetic pulse.

Shielding measures

In Sinn models featuring the  symbol on the dial, the electromagnetic radiation (pulse) emitted by the movement is minimised because the quartz movement has a special alloy sheath which is designed to absorb the exact frequency of the movement radiation. Thus, the radiation emitted by the movement is ‘trapped’ in the case, preventing it from escaping.

Effects on humans

Over the years, the effects of electromagnetism and the impact of electromagnetic radiation on the environment have been the subject of various studies. The objective of Sinn’s Q Technology is to minimise the effect of electronic devices on personal health. Thankfully, unlike many household devices, quartz watches emit only weak electromagnetic radiation. However, some people are highly sensitive to such radiation and a watch is worn directly on the body for an extended period of time. Sinn’s Q Technology offers shielding to cancel out the negative effects and enhance protection.

Technical Details

Quartz Movement 

•High Grade Swiss Movement

•High-precision quartz movement


•8 bearing jewels

•Seconds stop function

•Shock resistant as per DIN 8308

•Anti-magnetic as per DIN 8309


•Case made of stainless steel, polished

•Sapphire crystal glass in front, anti-reflective on both sides

•Case back screw-fastened, nickel-free

•Meet the technical requirements for waterproofness, as set out in standard DIN 8310

•Pressure-resistant up to 10 bar

•Low pressure resistant


• Hours, minutes, seconds

Dimensions and Weight 

•Case diameter: 34 mm

•Band lug width: 18 mm

•Case thickness: 8 mm

•Weight without strap: 35 gramme

Dial and Hands

•Shimmering white mother-of-pearl dial

•Hour and minute hand with luminescent colour


• 2 years

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