Side by side

Differs

Oris TT1 Chronograph01 674 7659 4174

Oris TT1 Chronograph

Zenith Pilot Type 20 Ton‑Up Chronograph Aged11.2432.4069/21

Zenith Pilot Type 20 Ton-Up Chronograph Aged

General

Collection: Not known; Pilot
Status: Discontinued; Discontinued
Introduced: Not known; 2017
Discontinued: Not known; 2021
Retail price: US$3,100; Not known

Case

Shape: Round; Round
Diameter: 45 mm; 45 mm
Thickness: Not known; 14.25 mm
Lug width: 25 mm; Not known
Material: Stainless steel; Stainless steel
Bezel: Tachymeter; Not known
Caseback (differs): Display (sapphire); Solid
Crystal (differs): Sapphire, Flat, Anti-reflective inside; Sapphire
Water resistance: 100 m; 100 m

Movement

Calibre (differs): Oris 674; Zenith El Primero 4069
Type: Automatic; Automatic
Power reserve (differs): 48 h; 50 h
Frequency (differs): 28,800 vph (4 Hz); 36,000 vph (5 Hz)
Jewels (differs): 25; 31
Functions (differs): Centre hands for hours, minutes and chronograph 1/4 seconds
3 subsidiary dials for continuous seconds
30 minutes and 12 hours counter
Date window
Date corrector
Stop-second; Chronograph
Column wheel
Hours
Minutes
Small seconds
Complications (differs): Chronograph
Date
Hacking (stop) seconds
Small seconds; Chronograph
Small seconds

Dial

Colour: Black; Black
Indices (differs): Mixed; Arabic numerals
Hands (differs): Dauphine; Cathedral

Bracelet

Type: Metal bracelet; Not known
Material: Stainless steel; Not known
Clasp: Folding clasp, Stainless steel; Not known
Strap colour: Black; Not known

Oris TT1 Chronograph 01 674 7659 4174 vs Zenith Pilot Type 20 Ton-Up Chronograph Aged 11.2432.4069/21 – dialtone