Side by side

CWC 1983 RN Divers Quartz Re-Issue WatchvsGrand Seiko SBGN027

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

1983 RN Divers Quartz Re-Issue Watch
CWC1983 RN Divers Quartz Re-Issue Watch
MSRP $749
SBGN027
Grand SeikoSBGN027
MSRP $3,700
What people say

Owners + reviewers, side by side

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

CWC 1983 RN Divers Quartz Re-Issue Watch

Owners widely praise the CWC 1983 RN Divers Quartz Re-Issue Watch for its historically accurate reproduction, thin profile for a 300m diver, and a second hand that aligns well with indices. Reviewers note its reasonable size on smaller wrists, original dial layout with markers touching the chapter ring, and a broader minute hand. However, criticism is directed at the fixed 20mm bars necessitating specific strap types and the mismatched lume colors between hands and hour markers, with some finding the convex lume on the markers overly shiny. Overall, owners rate the CWC 1983 RN Divers Quartz Re-Issue Watch highly for its accurate vintage aesthetic and wearability.

Grand Seiko SBGN027

Owners widely praise the Grand Seiko SBGN027 for its exceptional Zaratsu polishing, compact 39mm size, and versatile monochrome aesthetic, noting its thin profile and suitability as a grab-and-go watch. The 9F quartz movement delivers highly accurate timekeeping, with one owner reporting +/- 10 seconds per year. However, some find the lume limited, the bracelet lacks micro-adjustments, and the GMT hand can be easily mistaken for the minute hand. One owner reported a black index on the bezel disappearing after a couple of months. On balance, owners rate the Grand Seiko SBGN027 highly for its premium finishing and accurate HAQ GMT movement in a wearable size.

At a glance

11 of 29 specs differ
Diameter
1983 RN Divers Quartz Re-Issue Watch40mm
SBGN02739mm
Power Reserve
1983 RN Divers Quartz Re-Issue Watch40h
SBGN02740h
Water Resistance
1983 RN Divers Quartz Re-Issue Watch300m
SBGN027200m
MSRP
1983 RN Divers Quartz Re-Issue Watch$749
SBGN027$3,700

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
40mm
39mm
Thickness
12mm
12.3mm
Lug-to-Lug
46mm
45.9mm
Lug Width
20mm
19mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
1983 RN Divers Quartz Re-Issue Watch (RN300-83 QS60)
Black
Lume
Super-LumiNova
None

Movement

1 specs
Caliber
9F86

Pricing

1 specs
MSRP
$749
$3,700
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