The Basics

The IWC Aquatimer Split Minute is an unusual version of IWC’s Aquatimer dive watch. It’s self-winding movement with chronograph and date has an additional minute hand that can be stopped using a slide at the 9 o’clock side of the case, enabling its owner to take records up to 60 minutes. As all Aquatimers from this generation it also features an internal rotating bezel.

Brand: IWC
Family: GST Aquatimer
Reference: IW3723-04 (aka: 3723-04, IW372304)
Name: Aquatimer Split Minute Chronograph Rubber
Produced: 2004 – 2009
Limited: No

Below is a detailed look at IWC’s model IW3723-04 from GST Aquatimer watch family, including the price, case details and movement features.

IWC GST Aquatimer IW3723-04

The Details

IWC’s Aquatimer Split Minute Chronograph Rubber (IW3723-04 (aka: 3723-04, IW372304)) was originally released in 2004 – 2009. This watch features a automatic movement beating at a frequency of 28800 bph (4 Hz) to provide a 44-hour power reserve when fully wound.

The Case

The titanium case measures 44mm in diameter and roughly 16.3mm thick. The round case is paired with a black color dial with stick-shaped hands, and a stick / dot hour markers and minute track, covered by a sapphire glass. IWC’s GST Aquatimer model IW3723-04 is water resistant up to 120 meters (394 ft). A solid caseback is over the back of the watch case.

Material: Titanium
Glass: Sapphire
Back: Solid
Shape: Round
Diameter: 44mm
Height: 16.3mm
Lug Width: N/Amm
W/R: 120

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The GST Aquatimer IW3723-04 movement is a powered by caliber 79470 made by IWC. The 30-jewel automatic movement is 30mm in diameter. Its balance wheel oscillates at 28800 semi-oscillations per hour or 4 Hz. This movement offers a 44-hour power reserve.

Type: Automatic
Brand: IWC
Caliber: 79470
Base: ETA 7750
Display: Analog
Diameter: 30mm
Jewels: 30
Reserve: 44 hours
Frequency: 28800 bph
Time: Hours, Minutes
Chronograph: Chronograph

The Price

How much does the IWC’s GST Aquatimer IW3723-04 cost? This watch was introduced in 2004 and has been in IWC’s collection for around . This watch is not a limited release. As with most luxury watches, the price of depends on the availability and demand.


For more information, visit IWC online.


  • Brand: IWC
  • Model: Aquatimer Split Minute Chronograph Rubber
  • Reference Number: IW3723-04 (aka: 3723-04, IW372304)
  • Limited: No

Case & Dial:

  • Material: Titanium
  • Glass: Sapphire
  • Back: Solid
  • Diameter: 44
  • Thickness: 16.3
  • Lug Width: N/A
  • Dial Color: Black
  • Indexes: Stick / Dot and Stick-shaped hands
  • Water Resistance: 120 meters


  • Winding: Automatic
  • Brand: IWC
  • Caliber: 79470
  • Display: Analog
  • Diameter: 30mm
  • Jewels: 30
  • Power Reserve: 44 hours
  • Frequency: 28800 bph
  • Functions: Hours, Minutes

About IWC

IWC logo

IWC is based in Schaffhausen, Switzerland, and was founded in 1868. Its signature lines are the Pilot’s Watches and the Portugieser, while other famous collections are the Aquatimer, Portofino and the Da Vinci. Many of IWC’s designs display a industrial type of beauty not often found in Swiss watchmaking. The same goes for its movements; while of very high standards, they are finished with an … engineers touch rather than that of an artist. One could very well say that IWC’s approach to watchmaking is more German in nature compared to many of its competitors; the ‘form follows function’ adagio is one held in high esteem in Schaffhausen. Notable watches and innovations created by IWC in the past include the digital ‘Pallweber’ pocket watch, the late 1930’s Portugieser, the 1985 Da Vinci with Kurt Klaus perpetual module, the split-seconds mechanism as designed by Richard Habring and the ceramic Da Vinci and Flieger 3705 – introduced many years before the material became fashionable. IWC also pioneered the use of titanium in wristwatches. In recent years, IWC has had a strong focus on in-house movements with prices rising accordingly. IWC is part of the Richemont group.

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