Boxing Day Sale 2024!

Sea Quartz GMT

€325,00

Before starting Momentum, our founder Simon and his family owned a watch company called Chronosport. In 1977, they launched one of the first-ever analog quartz diver’s watches, the Sea Quartz 30. The brand became so popular that it was soon sold in almost every serious dive store in the US and Canada. This watch is inspired by the watches famously worn by Tom Selleck in the hit show Magnum PI.


Band: Stainless Steel

Stainless Steel
Blue Oceanflex Rubber
Red Oceanflex Rubber
Black Oceanflex FKM Rubber

This item is in stock.

This item is low in stock.

  • Iconic design based on one of the first quartz dive watches
  • Screw-down crown and 300M water-resistance rating
  • Thick C3 Super-LumiNova luminous markers, hands, and bezel
  • Scratchproof sapphire crystal and bezel insert
  • Swiss-made high-torque Ronda quartz GMT (battery-powered) movement
  • Original watch worn by Tom Selleck in Magnum P.I.
  • Office GMT Functionality.
  • Original brand owned by Momentum’s Founder & President
  • Movement: Swiss, Quartz (Battery), Ronda R505.24h
  • Dial Color: Blue
  • Crown: Screw-down crown
  • Water Resistance (m/ft) : 300 / 990
  • SKU: 054AADAFD-AD-B-BQ-B-BQ-CLKA-D-A-B
  • Case Material: Stainless Steel
  • Crystal: Sapphire Only
  • Case Diameter: 42mm
  • Case Height: 11.3mm
  • Lug Width: 20mm
  • Lug-to-Lug: 47mm
Sea Quartz GMT
Sea Quartz GMT
The Original Magnum P.I. Watch

In the early 1980’s, CBS launched the TV series Magnum PI. Set in Hawaii, it starred Tom Selleck. The series consistently ranked in the top 20 U.S. television programs for several years, finishing as high as number 3 for the 1982–83 season. And the watch that Tom Selleck wore for the first 3 seasons? Of course, it was the original Chronosport Sea Quartz 30. So we thought, why not combine the original Sea Quartz with the other watch he wore... the Pepsi GMT.

Sea Quartz GMT
Authentic History, Better Performance

The Sea Quartz 30 models from the 1980’s have built an almost cult-like following with Magnum fans, divers, and watch fanatics. To make them proud, we recreated the Sea Quartz 30 as closely as possible to the original. Our historical connection to Chronosport meant we could send genuine cases, dials, hands, and bezels directly to our factories so they could analyze and match the design. Of course, we wanted to make some key improvements. The dial, hands, and bezel now feature C3 Super-LumiNova for vastly improved lume performance over the original. The original watch also featured a mineral bezel and crystal, which has been replaced with scratchproof sapphire for unmatched durability.

Reviews

Customer Reviews
5.0 Based on 5 Reviews
5 ★
100% 
5
4 ★
0% 
0
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
0
Customer Photos
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
DW
02/18/2025
David W.
United States
I recommend this product

Better than Magnum's GMT

The first thing I noticed out of the box was that it looked smaller on the bracelet than the Sea Quartz 30. That may be because the bracelet has more of a taper. The second thing I noticed was that the dial color is a much more muted blue than it appears in the photos. I was pleased with this because I was afraid it was going to be too bright. Otherwise, it's a great GMT version of the original. Too bad these weren't around in Magnum's day. It's the GMT he should've worn in the show!

SI
01/28/2025
Sherry I.
Canada

Sea Quartz GMT

It was a gift to my husband, he loves Momentum watches and has a few. He loved the watch

DC
12/13/2024
David C.
Canada
I recommend this product

Another great watch from Momentum, a wonderful addition to my GMT collection. Comfortable to wear and looks very nice with the Jubilee bracelet....been buying these watches all the way back to when it was St Moritz.

Momentum Watch Sea Quartz GMT Review
RG
12/07/2024
R G.
United States
I recommend this product

Fun and awesome!

Just like its cousin the Sea Quartz 30, this is a fun, no nonsense, reliable watch that is ready for what ever you can through at it on a daily basis. Easy to read, GMT complication ( I need this for friends and relatives) and the added security of a 300M quartz watch means it is ready to go at a moment’s notice. Light weight ( on the strap), highly legible, highly accurate and ready at a moments notice is what this watch brings to the table. I would be remiss if I didn’t mention it’s flaws though- 1) the GMT hand should really extend out to the rehaut, and 2) the uni-directional bezel (a missed opportunity that would make this an 11!) should be bi-directional. Looking forward to years of awesome service with this one. Don’t hesitate to add one to your collection.

Momentum Watch Sea Quartz GMT ReviewMomentum Watch Sea Quartz GMT ReviewMomentum Watch Sea Quartz GMT Review
GS
12/06/2024
Gregory S.
United States
I recommend this product

Great watch

I love this watch so much bought one for my son and one for my wife.