What is the Seiko SMW002A?

It is an analog wristwatch that also functions as a visual and acoustic metronome. It is part of a special Seiko series (the “Standard Monotone” line) designed for musicians who want to wear their practice tool on their wrist without it looking like a bulky digital device.

Key Features

• The Hand is the Metronome: The coolest thing about this watch is that when you activate the metronome mode, the hands of the watch don't rotate, but swing from left to right, imitating the physical hand of an old-fashioned metronome.
• Tempo Range: You can adjust the speed from 40 to 304 BPM (beats per minute).
• Reference Tone Generator: In addition to keeping time, it can emit reference notes for tuning instruments (A and B flat at 440, 442, or 443 Hz).
• Design: The SMW002A model is the “Monochrome” version (clean white dial, black leather strap), with a minimalist style that is very easy to read.
• Size: It is compact, about 36.5 mm in diameter, making it comfortable to wear while playing instruments without getting in the way on your wrist.

Is it worth it?

If you are a musician (or the gift is for one), it is an excellent piece and difficult to find outside of Japan (many are imported, as seems to be the case with that eBay link). It is not just a watch, it is a functional practice tool with a classic design.

Standard line with a solid impression

The dial has the time indication on the inside and a metronome tempo scale and reference tone on the outside.

The time is indicated by the thick part of the hand, and when the metronome or reference tone is set, the thin part of the hand tip indicates the scale.

The height and thickness have been reduced thanks to the miniaturization of the module that performs the unique movement of the hands.

Model No. SMW002A

Drive system Battery-powered quartz

Main functions Clock, metronome, reference tone pronunciation

Metronome function

Tempo range: 40 to 304 times/min

(41 fixed steps)

Accuracy: ±0.2%.

Reference tone function

Pronunciation range: 6 types

(A-440 Hz/A-442 Hz/A-443 Hz

/B♭-440 Hz/B♭-442 Hz/B♭-443 Hz)

Accuracy: ±1 cent

Clock accuracy Average monthly difference ±15 seconds

Power source 1 CR 2016 battery

Battery life

Approx. 2 years

(when used with the metronome function at a tempo of 120 seconds/day at 120,

reference tone mode 20 seconds/day)

Water resistance Water resistant for everyday use

Strap material Leather (calf)

Case diameter Thickness: 10 mm, width: 36.5 mm, height: 39.6 mm

Weight: 45 g

Maximum wrist length: 180 mm

Strap width: 18 mm