Side by side

Citizen Promaster Skyhawk A-TvsYema Skin Diver Slim CMM.20

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

Promaster Skyhawk A-T
CitizenPromaster Skyhawk A-T
MSRP $671
Skin Diver Slim CMM.20
YemaSkin Diver Slim CMM.20
MSRP $2,117

At a glance

10 of 29 specs differ
Diameter
Promaster Skyhawk A-T46mm
Skin Diver Slim CMM.2047mm
Power Reserve
Promaster Skyhawk A-T40h
Skin Diver Slim CMM.2040h
Water Resistance
Promaster Skyhawk A-T200m
Skin Diver Slim CMM.20200m
MSRP
Promaster Skyhawk A-T$671
Skin Diver Slim CMM.20$2,117

Full specifications

Case

5 specs
Category
Pilot
Diver
Diameter
46mm
47mm
Thickness
12mm
10mm
Lug-to-Lug
46mm
47mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Blue
Steel

Movement

2 specs
Caliber
U680
Yema CMM.20
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$671
$2,117

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What people say

Owners + reviewers, side by side

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

Citizen Promaster Skyhawk A-T

The Citizen Promaster Skyhawk A-T is praised for its comprehensive feature set, including radio-controlled atomic timekeeping, a perpetual calendar, and a second time zone subdial. Reviewers note the titanium models offer good wearability, though one owner found the watch felt like a boat anchor. The stainless steel versions feature polished chamfers, brushed finishing, and a bidirectional bezel with a slide rule. Some models, particularly those with black hands against a black dial, have been criticized for poor readability, while others offer semi-skeletonized white sword hands and stencil numerals for improved legibility. On balance, owners and reviewers appreciate the Citizen Promaster Skyhawk A-T's extensive functionality and build, though legibility can be a concern on certain dial configurations.

Yema Skin Diver Slim CMM.20

Owners and reviewers widely praise the Yema Skin Diver Slim CMM.20 for its balanced 39mm case, vintage aesthetic, and unique champagne dial. The proprietary CMM.20 micro-rotor movement is a notable feature, though some owners report potential QC issues including erratic timegrapher readings and second-hand stutter. The lume is described as subdued, and while some find the "dragon scale" bracelet beautiful, others consider it generic. The price point is a hurdle for some, and the stamped clasp quality is considered subpar by one reviewer, with a gap noted by an owner. The lack of hacking seconds is flagged as a drawback at its price. Overall, owners and reviewers rate the Yema Skin Diver Slim CMM.20 highly for its vintage charm and balanced wearability.

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