Erwin Sattler

Made to order

Troja Opus Temporis perpetual calendar

Troja Opus Temporis

Features

Model

Catalogue number: Troja Opus Temporis

Housing

Diameter: 475 mm

Dial

Colors: Silver

Tour d’heures: Roman

Ice

Material: Mineral

Movement

Type: Hand-wound

Caliber: Sattler calibre 2050 Manufacture

Power reserve: 720 hours

Crimp

Dial

3 physical stores in Switzerland

6-generation watchmaking family

Official agent with international guarantee.

Delivery and customized watchmaking service included