Watch Almanac
Invicta

Pro Diver Automatic 40mm Two-Tone

Ref. 8928OB

Case diameter
40 mm
Manufacturer spec
Lug-to-lug
—
Not published
Thickness
—
Not published
Lug width
20 mm
Manufacturer spec

Retail price $180 (US, Oct 2026)

We have not verified this watch’s lug-to-lug yet, so we can’t draw it on a wrist. Case diameter alone is a poor guide to fit.

How the Pro Diver Automatic 40mm Two-Tone wears

Its 20 mm lug width is one of the most common strap sizes; 196 other watches here share it, so aftermarket straps are easy to find.

Specifications

Reference
8928OB
Collection
Pro Diver
Status
In production
Case material
stainless steel with gold-tone accents
Crystal
mineral
Water resistance
200 m
Bezel
unidirectional coin-edge bezel
Dial
blue
Strap / bracelet
two-tone steel and gold-tone bracelet, diver buckle
Style
Dive, Everyday

Movement

Caliber
Seiko NH35A
Type
automatic
Jewels
24

3 other watches use the Seiko NH35A

Takes 20 mm straps. See other 20 mm watches and straps.

More Pro Diver references

Same 20 mm lug width

All 20 mm watches

These take the same straps as the Pro Diver Automatic 40mm Two-Tone.

Sources