Rolex GMT-Master II Pepsi vs Omega Seamaster 300m

Head-to-head comparison · Community ratings · Pricing

Rolex GMT-Master II Pepsi official product image

Rolex

GMT-Master II Pepsi

Ref. 126710BLRO

No reviews yetFull specs →
Omega Seamaster 300m official product image

Omega

Seamaster 300m

Ref. 210.30.42.20.01.001

4.2
1 review
Full specs →
⚖️

Quick Verdict

Omega Seamaster 300m is the value winner at $6k–$6k — over 50% cheaper than the Rolex GMT-Master II Pepsi ($11k–$11k). Choose Omega Seamaster 300m (300m WR) for diving; Rolex GMT-Master II Pepsi (100m) suits everyday wear. Case size: Omega Seamaster 300m at 42mm suits larger wrists; Rolex GMT-Master II Pepsi at 40mm is the more compact option.

GMT-Master II PepsiInternet Community RatingSeamaster 300m
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Specifications Compared

Specification
Rolex GMT-Master II Pepsi
Omega Seamaster 300m
Case Diameter
40mm
42mm
Case Thickness
11.9mm
13.6mm
Lug Width
20mm
21mm
Lug-to-Lug
47mm
51mm
Movement
automatic
automatic
Caliber
Cal. 3285
Cal. 8800
Power Reserve
70h
55h
Water Resistance
100m
300m
Crystal
sapphire
sapphire
Case Material
Oystersteel
Stainless Steel
Bracelet/Strap
Oystersteel Jubilee
Stainless Steel
Price (New)
$11k–$11k
$6k–$6k
Price (Pre-owned)
$18k–$24k
$5k–$6k
Style
gmt, sport, luxury
dive, sport

Community Ratings

Rolex GMT-Master II Pepsi

No community ratings yet

Omega Seamaster 300m

Value for Money
4.0
Build Quality
5.0
Movement Reliability
5.0
Daily Wearability
4.0
Resale Strength
3.0

Frequently Asked Questions

Which is better: Rolex GMT-Master II Pepsi or Omega Seamaster 300m?

Both are excellent watches with different strengths. The Rolex GMT-Master II Pepsi offers a more compact size and costs more new. The Omega Seamaster 300m excels in water resistance. The best choice depends on your wrist size, budget, and preferred aesthetic.

What's the price difference?

The Rolex GMT-Master II Pepsi retails for $11k–$11k, while the Omega Seamaster 300m is priced at $6k–$6k. Pre-owned, expect $18k–$24k and $5k–$6k respectively. Actual secondary market prices vary based on condition and demand.

How do the case sizes compare?

The Rolex GMT-Master II Pepsi has a 40mm case diameter with 11.9mm thickness, while the Omega Seamaster 300m measures 42mm × 13.6mm. Both have lug-to-lug measurements of 47mm and 51mm respectively. Consider your wrist size and wear style when deciding.

Which has better water resistance?

The Rolex GMT-Master II Pepsi is water-resistant to 100m, while the Omega Seamaster 300m offers 300m. Both are suitable for swimming and snorkeling at their respective depths. For professional diving, verify the rating exceeds 300m and includes a screw-down crown.

How do the movements compare?

The Rolex GMT-Master II Pepsi uses a automatic Cal. 3285 with 70 hours power reserve. The Omega Seamaster 300m features a automatic Cal. 8800 with 55 hours power reserve. Both offer traditional mechanical craftsmanship.

Which holds value better?

Rolex and Omega both command strong secondary markets. Pre-owned pricing shows an estimated resale value of $18k–$24k for the GMT-Master II Pepsi and $5k–$6k for the Seamaster 300m. Condition, service history, and box/papers significantly impact resale value for both models.

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