Side by side

Longines LONGINES AVIGATION BIGEYEvsYema Superman Steel CMM.10

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

LONGINES AVIGATION BIGEYE
LonginesLONGINES AVIGATION BIGEYE
MSRP $4,400
Superman Steel CMM.10
YemaSuperman Steel CMM.10
MSRP $1,890

At a glance

11 of 29 specs differ
Diameter
LONGINES AVIGATION BIGEYE41mm
Superman Steel CMM.1039mm
Power Reserve
LONGINES AVIGATION BIGEYE40h
Superman Steel CMM.1040h
Water Resistance
LONGINES AVIGATION BIGEYE30m
Superman Steel CMM.10300m
MSRP
LONGINES AVIGATION BIGEYE$4,400
Superman Steel CMM.10$1,890

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
41mm
39mm
Thickness
14.5mm
11.3mm
Lug-to-Lug
48.7mm
Lug Width
20mm
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
30m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Blue
Steel

Movement

1 specs
Caliber
L688.5
Yema CMM.10

Pricing

1 specs
MSRP
$4,400
$1,890

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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.

LONGINES AVIGATION BIGEYE

Owners and reviewers widely praise the Longines Avigation Bigeye for its unique, asymmetric dial, vintage military aesthetic, and cohesive design, with one reviewer noting its GPHG Best Revival prize win. The tactile chronograph pusher action and reliable L688.2 column wheel movement are highlighted, as is the watch's legibility and versatile strap-swapping potential due to its 20mm lug width. However, criticisms include the 30-minute sub-dial's three-minute hash marks, which some find compromise reading speed, and the lack of drilled lugs. The watch's thickness, around 14.45mm, is noted as typical for its movement, and some owners mention minor QC issues with chronograph hand alignment and a loud rotor. On balance, owners and reviewers rate the Longines Avigation Bigeye highly for its distinctive vintage-inspired design and solid chronograph performance at its price point.

Yema Superman Steel CMM.10

Owners widely praise the Yema Superman Steel CMM.10 for its refined casework, including polished lug bevels and an elegant crown guard, and its comfortable 39mm x 10.5mm dimensions. The glossy black lacquer dial and bezel insert are noted for adding depth, and the in-house CMM.10 movement is reported to be accurate, with one owner observing a loss of only 2 seconds over 2 days. The scales bracelet is described as gorgeous and nearly invisible on the wrist, though some find its polished center links too flashy. One reviewer flagged the signature bezel lock mechanism as flimsy and inconvenient. The CMM.10 automatic movement offers a 70-hour power reserve and is regulated to within +5/-3 seconds per day. On balance, owners and reviewers rate the Yema Superman Steel CMM.10 highly for its refined finishing and comfortable wearability at its price point.

From video reviewers

The Yema Steel features an in-house movement with a micro-rotor, one of the most beautiful at this price point. The watch's clasp feels a bit thin, which is a notable drawback. Reviewers disagree on the movement's power reserve, with one reviewer noting a 42-hour reserve and the other not mentioning power reserve at all.

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