Prices come from the reviews in their original currency and market. Article dates are shown below.
Specification
A. Lange & SöhneDatograph Perpetual
NOMOS GlashütteClub 38 / Club 38 Ruthenium
Reference
410.136E
769 / 769.GB / 770 / 770.GB
Winding
Manual winding
Manual winding
Calibre
L952.1
DUW 4001
Diameter
41 mm
38.5 mm
Size / thickness
41 × 13.5 mm
38.5 mm; 46.7 mm lug to lug; 8.4 / 8.5 mm thick
Power reserve
36 hours
Up to 53 hours
Case material
Not stated in the review
Stainless steel; sapphire crystal
Functions
Flyback chronograph, perpetual calendar, moon phase
Not stated in the review
Crystal
Not stated in the review
Not stated in the review
Water resistance
Not stated in the review
10 atm
Price and market
Not stated in the review
German price including VAT: €1,520 / €1,740 — white; €1,560 / €1,780 — ruthenium
A. Lange & Söhne · Datograph Perpetual
Strengths
The point is not additional functions but a different way to wear a complicated Lange: a platinum bracelet makes the classic calendar chronograph a continuous precious-metal object.
Things to consider
A 36-hour reserve imposes a strict routine on a perpetual calendar. Fully wound and removed on Friday evening, it will not reach Monday.
The most useful part of this launch is the choice of fit. Club 38 stays slim, and the display-back premium can be considered separately from the choice of dial.
Things to consider
53 hours will not cover Friday evening to Monday morning. Rotating watches will require winding or resetting the time.
