lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Best dress watches·Chronograph under $5,000·Best sport watches·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·Selling calculator·What should I buy?·Value retention rankings·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/STEELDIVE/SD1948S
SpecStudio
STEELDIVE SD1948S
Click to inspect
STEELDIVE

STEELDIVE SD1948S

Ref. SD1948S

$308Stock unknown
Buy from STEELDIVEFind used on eBay

Some links here are affiliate links. lug2lug may earn a commission at no extra cost to you. Disclosures

Case

Diameter
44.5mm
Thickness
15mm
Lug-to-lug
50.6mm
Lug width
22mm
Material
Solid Bronze CuSn8
Water resistance
1000m

Crystal & dial

Crystal
Sapphire

Movement

Caliber
Seiko NH35
Type
Automatic

Seiko

Seiko's third-party supply version of the 4R35, sold to external watch brands and modders worldwide. Adds hacking and hand-winding over the 7S26 it effectively replaced. The NH35 has become the default automatic movement for watch modding and microbrand watches, thanks to its low cost, reliability, and wide availability of compatible parts including dials, hands, and cases in the Seiko-compatible format.

Design language

Case shape
round
Dial style
standard
Bezel
rotating
Bracelet
rubber_strap

AI-detected from the product image

2 colorways

Alternatives

02The connection engine

More like this.

Zelos Hammerhead V3 300m Bronze

Zelos

Hammerhead V3 300m Bronze

44mm · Automatic$449

Spinnaker Dumas Automatic

Spinnaker

Dumas Automatic

44mm · Automatic$239

Boldr Odyssey Bronze

Boldr

Odyssey Bronze

45.5mm · Automatic$649

Zelos Hammerhead V3 300m

Zelos

Hammerhead V3 300m

44mm · Automatic$449

BOLDR Supply Co. Odyssey Bronze Serpentine

BOLDR Supply Co.

Odyssey Bronze Serpentine

45.5mm · Automatic$649

Spinnaker Wreck Automatic

Spinnaker

Wreck Automatic

44mm · Automatic$189

View all alternatives

03The community take

Owners talk.

“
In a nutshell

The STEELDIVE SD1948S (ref. SD1948S) is an automatic watch, with a 44.5mm solid bronze cusn8 case, 15mm thick, powered by the Seiko NH35 movement. Water resistance is rated to 1000m, under a sapphire crystal. Manufacturer MSRP is $308.

Open the discussion

On real wrists

No shots yet. Show how it wears.

04The paper trail

Ask the communityStart a discussion about the SD1948S — get takes from other collectors.Ask →

05The discussion

Talk about the STEELDIVE SD1948S.