Collection
Offround
Watch name
Automatic
Dial
black
Reference
3554-a1
Case
Material
stainless steel (316L)
Glass
mineral
Surface
polished
Water resist
3 ATM
Glass back
yes
Size
43 mm
Crown
not screwed
Band
leather
Strap width
22 mm
Movement
Manufacturer
ETA, Manufacture Horlogère Suisse, Grenchen (since 1793)
Caliber
ETA
Date
yes
Weekday
no
System
automatic
Energy
mechanical
Jewels
21/25
Vibrations
21´600/28´800 A/h
Special
The first square watch was designed the year 1973.