Side by side

Resco Custom C-ref: RTAC Custom GMT (Stainless)vsSeiko Prospex SPEEDTIMER

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Custom C-ref: RTAC Custom GMT (Stainless)
RescoCustom C-ref: RTAC Custom GMT (Stainless)
MSRP $1,105
Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $2,200
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Resco Custom C-ref: RTAC Custom GMT (Stainless)

Owners widely praise the Resco Custom C-ref: RTAC Custom GMT (Stainless) for its durability and quality, with one owner noting it as a go-to timepiece that withstands harsh conditions while maintaining its appearance. The unique green color is also appreciated by some, fitting an outdoorsy lifestyle. One owner finds the 44mm case too large for their preference, though they love the watch itself and wish for a smaller version. Overall, owners rate the Resco Custom C-ref: RTAC Custom GMT (Stainless) highly for its robust build and suitability for active use.

Seiko Prospex SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER for its unique dial colors and vintage-inspired design, with many appreciating its compact 39mm case size and 100m or 200m water resistance. Reviewers and owners note the V192 solar movement’s power reserve indicator and its reliability, though some owners express a preference for automatic movements. One owner finds the $700 price for a solar quartz model expensive, while another criticizes the €860 price point and desires a thinner case and a bracelet with quick-release or micro-adjustment. On balance, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER for its distinctive aesthetic and versatile wearability, despite some reservations about its price and case thickness.

At a glance

13 of 29 specs differ
Diameter
Custom C-ref: RTAC Custom GMT (Stainless)44mm
Prospex SPEEDTIMER42mm
Power Reserve
Custom C-ref: RTAC Custom GMT (Stainless)40h
Prospex SPEEDTIMER40h
Water Resistance
Custom C-ref: RTAC Custom GMT (Stainless)200m
Prospex SPEEDTIMER100m
MSRP
Custom C-ref: RTAC Custom GMT (Stainless)$1,105
Prospex SPEEDTIMER$2,200

Full specifications

Case

6 specs
Category
Chronograph
Diameter
44mm
42mm
Thickness
13mm
12.9mm
Lug-to-Lug
46mm
49.6mm
Lug Width
22mm
20mm
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
White
Black
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
5X83
Jewels
25
14

Pricing

1 specs
MSRP
$1,105
$2,200
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