Side by side

Longines SPIRIT ZULU TIMEvsYema Skin Diver Slim CMM.20

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

The bottom line

The 39mm SPIRIT ZULU TIME wears 8mm narrower than the 47mm Skin Diver Slim CMM.20 — that's a meaningful jump on most wrists.

What people say

Owners + reviewers, side by side

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

Longines SPIRIT ZULU TIME

Owners widely praise the Longines Spirit Zulu Time for its excellent fit and finish, visual appeal, and value, with many preferring its thinner titanium case and color-matched date wheel. Reviewers highlight its legibility and comfortable 39mm wearability, while some owners note the bracelet could be weightier and lacks tool-less micro-adjustment. Accuracy figures range from +5 seconds per day to unspecified, and one owner reported condensation risk in hot tubs. On balance, owners and reviewers rate the Longines Spirit Zulu Time highly for its blend of tool-watch utility and segment-leading finishing at its price point.

From video reviewers

The 18k gold capped bezel insert is a notable feature, adding a touch of luxury to the watch. However, the watch's lume is not as bright as some reviewers would like, which is a drawback for those who prioritize good illumination. Reviewers disagree on the watch's functionality, with some considering it a compelling option and others feeling it doesn't quite live up to its design.

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.

Where to get them

Check prices & track

Longines SPIRIT ZULU TIME
Longines SPIRIT ZULU TIME
MSRP $3,550
Yema Skin Diver Slim CMM.20
Yema Skin Diver Slim CMM.20
MSRP $2,117
SPIRIT ZULU TIME
LonginesSPIRIT ZULU TIME
MSRP $3,550
Skin Diver Slim CMM.20
YemaSkin Diver Slim CMM.20
MSRP $2,117

At a glance

23 of 29 specs differ
Diameter
SPIRIT ZULU TIME39mm
Skin Diver Slim CMM.2047mm
Power Reserve
SPIRIT ZULU TIME72h
Skin Diver Slim CMM.2040h
Water Resistance
SPIRIT ZULU TIME100m
Skin Diver Slim CMM.20200m
MSRP
SPIRIT ZULU TIME$3,550
Skin Diver Slim CMM.20$2,117

Full specifications

Case

9 specs
Category
GMT
Diver
Diameter
39mm
47mm
Thickness
13.5mm
10mm
Lug-to-Lug
46.8mm
47mm
Lug Width
21mm
20mm
Material
Ceramic
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
100m
200m
Caseback
Screw-down case back
Solid

Crystal & Dial

6 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Flat
AR Coating
Both sides
Inner
Dial Color
Anthracite
Steel
Indices
Applied Arabic numerals
Applied
Lume
Super-LumiNova
None

Movement

7 specs
Caliber
L844.4
Yema CMM.20
Beat Rate
25,200 vph
28,800 vph
Power Reserve
72h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Hours, minutes, seconds and date, 24 hours hand with time zone mechanism
None

Pricing

1 specs
MSRP
$3,550
$2,117

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