Side by side

Differs

Longines Ultra‑Chron ClassicL2.537.4.72

Longines Ultra-Chron Classic

IWC Schaffhausen Portofino Automatic 37IW458601

IWC Schaffhausen Portofino Automatic 37

General

Collection: Not known; Portofino
Status: In production; In production
Introduced: Not known; 2022
Retail price (differs): US$3,900; US$6,600

Case

Shape: Round; Round
Diameter: 37 mm; 37 mm
Thickness (differs): 10.95 mm; 9.4 mm
Lug to lug: 44.6 mm; Not known
Lug width (differs): 19 mm; 18 mm
Material: Stainless steel; Stainless steel
Caseback: Not known; Display (sapphire)
Crystal (differs): Sapphire, Anti-reflective on both sides; Sapphire, Domed, Anti-reflective on both sides
Water resistance: 50 m; 50 m
Weight: 59 g; Not known

Movement

Calibre (differs): Longines L836.6; IWC 32111
Type: Automatic; Automatic
Origin: Not known; In-house
Power reserve (differs): 52 h; 120 h
Frequency (differs): 36,000 vph (5 Hz); 28,800 vph (4 Hz)
Jewels: Not known; 21
Certification: COSC; Not known
Functions (differs): Hours, minutes, seconds and date; Central hacking seconds
Date display
Complications (differs): Date; Central seconds
Date
Hacking (stop) seconds

Dial

Colour: Silver; Silver
Pattern: Sunburst; Not known
Indices (differs): Applied, Baton; Mixed
Hands: Not known; Leaf

Bracelet

Type: Leather strap; Leather strap
Material: Stainless steel; Not known
Clasp: Pin buckle; Not known
Strap colour (differs): Black; Cream