Is the Timex Ironman T100 good for marathon training?

Yes. The 100-hour chronograph and 200-lap memory cover long runs and interval sessions, and the interval timer handles repeat workouts. It has no GPS, so distance comes from your route or a phone.

It is rated to 50 meters, which covers swimming and showering. It is not intended for diving or high-pressure water sports.

How is it different from other Ironman models?

The T100 stands out for its 200-lap memory and programmable interval timer, which basic Ironman watches lack. It keeps the same resin build and Indiglo backlight.

Does it have a heart-rate monitor or GPS?

No. It is a quartz digital watch with timing, alarm and calendar functions only, so it pairs with no phone and needs no charging.

The watch in its original packaging with the manufacturer's one-year limited warranty.

How many alarms does it have?

Three, each settable for daily, weekday or weekend use, plus a 24-hour countdown timer.

Timex Unisex Ironman T100 Grey Digital Dial Blue Resin Strap Watch

Q: Where is the Timex Unisex Ironman T100 Grey Digital Dial Blue Resin Strap Watch cheapest?

At Poshmark, for $26.00, 19% under what the other stores charge, as of our latest check.

Q: What do buyers say about the Timex Unisex Ironman T100 Grey Digital Dial Blue Resin Strap Watch?

Rated 5 out of 5 from 1 ratings.

Q: Where can I buy the Timex Unisex Ironman T100 Grey Digital Dial Blue Resin Strap Watch?

11 stores we checked sell it, including Amazon, Poshmark, Sears, JacobTime.com, My Gift Stop.

Best price now

$26.00at PoshmarkChecked 1 h ago

19% under what the other stores charge

Compared across 11 stores. Prices are checked against each store and labelled with when.

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What reviewers say

Owners of the Ironman line generally praise its reliability, light weight and easy-to-use buttons, and the T100's lap memory and interval timer are the features most valued by runners. Complaints tend to focus on the plain resin build and the limits of a non-GPS watch.

What people mention

Lap memoryPraisedRunners value the 200-lap memory for tracking long interval sessions without writing splits down.
Interval timerPraisedThe programmable repetition timer is called out as the main reason to pick the T100 over cheaper Ironman models.
BuildMixedOwners find the resin case and strap light and comfortable but plain compared with metal sports watches.
Water resistanceMixed50m is fine for swimming and showers, but some wish it matched the 100m rating of other Ironman models.
DisplayCriticisedSome users say the grey digital display is harder to read at a glance than higher-contrast screens.

About the Timex Unisex Ironman T100 Grey Digital Dial Blue Resin Strap Watch

The Timex Ironman T100 is a unisex digital watch with a grey digital dial and a blue resin strap. The case is blue and black resin, with a fixed bezel and a textured push/pull main crown. The dial uses conservatively sized Arabic numeral hour markers for legibility.

It has a 100-hour chronograph with 200-lap memory, an interval training timer with programmable repetitions, and a 24-hour countdown timer. It also has 3 alarms (daily, weekday or weekend), two time zones and a choice of 12 or 24-hour time format. The display shows the day, date and month, and the Indiglo night-light backlight lights the dial in the dark.

A mineral crystal resists scratches. The strap closes with a stainless steel pin buckle clasp. A quartz movement powers the watch.

Model

Timex TW5M629009J

Case size

41 mm across, 14 mm thick

Case material

Blue and black resin

Strap

Blue resin with stainless steel pin buckle clasp

Dial

Grey digital with Arabic numeral hour markers

Bezel