Glycine Combat Sub SportvsSheffield SUPERPRODUCTION

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Glycine Combat Sub Sport at true scale

Combat Sub Sport

Sheffield SUPERPRODUCTION at true scale

SUPERPRODUCTION

Diameter

39mm

40mm

Lug-to-Lug

n/a

48mm

Thickness

11.2mm

lowest

12.6mm

Water Resistance

300m

highest

200m

Power Reserve

38h

38h

MSRP

$540

n/a

Movement

Sellita SW200-1

Sellita SW200-1

Case

6 specs
Diameter
39mm
40mm
Thickness
11.2mm
12.55mm
Lug-to-Lug
n/a
48mm
Finish
n/a
n/a
Water Resistance
300m
200m
Caseback
n/a
n/a

Crystal & Dial

5 specs
Crystal Shape
n/a
n/a
AR Coating
n/a
n/a
Dial Color
Black
Blue Graphite
Indices
n/a
n/a
Lume
Luminous
Swiss Lume

Movement

3 specs
Beat Rate
28,800 vph
0 vph
Jewels
26
0
Complications
Date
None

Pricing

1 specs
MSRP
$540
n/a
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Reviews

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

Glycine Combat Sub Sport

Owners widely praise the Glycine Combat Sub Sport for its thinness, with various sources citing measurements between 10.4mm and 10.8mm, and its comfortable wearability due to contoured lugs that make it feel smaller than its 39mm case size. Reviewers and owners consistently highlight its value, with some considering it the best dive watch under $400 and noting its refined finishing and smooth winding action. However, opinions are mixed on its design, with some finding it unique and others plain or questioning its homage status. Lume quality is a point of contention, with some finding it subpar and hard to read at night, while others describe it as marginally better than a Seiko SKX007. Some owners have also reported inconsistent power reserve or stem issues. Overall, owners and reviewers rate the Glycine Combat Sub Sport highly for its exceptional thinness and value proposition at the price point.

Sheffield SUPERPRODUCTION

Owners widely praise the Sheffield SUPERPRODUCTION for its attractive blue dial and overall quality at an affordable price. The bezel action is generally well-regarded, though one owner suggests it could be crisper. The Sellita SW200-1 movement is reported to be accurate, with one owner observing a gain of 3 seconds over 24 hours. The 40mm case is noted by one owner to feel smaller than expected, and the crown is described as finicky and tight for winding and setting. On balance, owners rate the Sheffield SUPERPRODUCTION highly for its dial and value proposition, despite minor criticisms of the crown and case size perception.

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