Reference 437.SB is the closed-case-back variant of the Tetra Ochra, featuring the same 29.5mm stainless steel architecture, ocher dial, and DUW 4001 movement as the rest of the Origins series. It maintains a 5 atm water-resistance rating and is secured with a beige vegan velour strap.
Movement Type
Manual
Caliber
DUW 4001Jewels
17
Reserve
43
Frequency
21600
Hands
Small Seconds
Shape
Square
Lug Distance
18.00 mm
Material
Stainless Steel
Glass
Sapphire
Thickness
6.50 mm
Diameter
29.50 mm
Water Resistance
50.00 m
Dial Color
Yellow
