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Phoibos Proteus Bronze 300M

PY046A Archive · used only

The Phoibos Proteus Bronze 300M was a 42 mm bronze dive watch with a Seiko NH35 automatic movement. It is no longer made, so this page is a reference for buying one used.

All Phoibos watchesDiver watchesUnder $500MicrobrandLightest, ranked
Price
$375
Material
Bronze
Grade / type
CuSn8 marine bronze
Weight
121 g (head only)
Water resistance
300 m
Reference
PY046A
Type
Diver
Case diameter
42.0 mm
Thickness
13 mm
Lug-to-lug
49 mm
Origin
Hong Kong
Movement
Japanese automatic
Caliber
Seiko NH35
Power reserve
41 hours
Complications
Date
Construction
Assembled
Finish technology
Natural finish
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Leather strap with bronze buckle
Crystal
Domed sapphire with inner AR coating
Display back
No
Dial
Forest green (also navy, salmon, white)
Dial colours
White Blue Green Salmon
Lume
Super-LumiNova
Availability
No longer offered
Status
No longer offered; limited edition of 100, maker product page removed, sold out at all known retailers (Long Island Watch, Time-Tec, SeriousWatches)
Not published
Colour, Hardness, Surface treatment, Caseback, Matching bracelet
High confidence Verified Jul 2026 Source: Phoibos / Long Island Watch
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Frequently asked questions

What is the case of the Phoibos Proteus Bronze 300M made of?

The case is cusn8 marine bronze. That is confirmed against the maker's specification.

What size is the Phoibos Proteus Bronze 300M?

The case is 42 mm across, 13 mm thick and 49 mm from lug to lug. It is water resistant to 300 m.

How much does the Phoibos Proteus Bronze 300M weigh?

About 121 g for the watch head alone.

How much does the Phoibos Proteus Bronze 300M cost, and is it available?

It is no longer made, so the only way to buy one is used. Its list price when it was in production was $375.

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