Standard line with a neat impression
The dial has a time display on the inside, and a metronome tempo and reference tone scale on the outside.
The thick part of the needle indicates the time, and the thin part at the tip of the needle indicates the scale when setting the metronome or reference tone.

By miniaturizing the module that realizes the unique movement of the needle, the height and thickness have been made compact.

SPECIFICATIONS
Model number SMW004A
Drive system battery type quartz
Main functions Clock, metronome, reference tone pronunciation
Metronome function
Tempo range: 40-304 beats/minute (fixed at 41 steps)

Accuracy: ±0.2%

Reference tone function
Pronunciation range: 6 types

(A-440Hz/A-442Hz/A-443Hz/B♭-440Hz/B♭-442Hz/B♭-443Hz)

Accuracy: ±1cent

Clock accuracy Average monthly difference ±15 seconds
Power supply CR 2016 1 pc.
battery life
about 2 years

(When using the metronome function tempo 120 for 120 seconds/day and reference tone mode for 20 seconds/day)

Waterproof Daily life waterproof
Band material leather band
Case diameter Thickness: 10 mm, Width: 36.5 mm, Height: 39.6 mm
weight 45g
Arm circumference (maximum) 180mm