Automatic coastal dive watch

SHORELINE

The simpler sibling to TIDE PRO. A coastal dive watch built around a dependable automatic movement, a tactile Turtle case, and the quiet texture of water meeting shore.

Colorway Dune
four77 Shoreline Dune automatic dive watch in daylightfour77 Shoreline Dune with BGW9 lumeDaylightBGW9 lume
Concept · Prototype in development
Made for the waterline

Five moods. One point of view.

SHORELINE keeps the broad, confident case and nautical character of TIDE PRO, then strips the dial back to pure timekeeping. The result is an everyday automatic with genuine dive-watch fundamentals.

01 · COAST

Colors pulled from the edge of the water.

Dune, Breakwater, Sea Glass, Sunset, and Storm translate five shoreline moments into distinct dial, bezel, and strap combinations.

02 · PURPOSE

A tool watch at heart.

Large BGW9-filled hands and markers, a sapphire crystal, and a grippy elapsed-time bezel keep the display direct from bright sun through blue hour.

Prototype specification

Familiar hardware. Distinct character.

The first SHORELINE prototype is designed around proven mod-compatible components, making it a practical path from render to wrist.

Case41mm Turtle
MovementSeiko NH35
CrystalSapphire
Water resistanceTarget 200m
LumeBGW9 blue
Case finishBrushed steel
From concept to prototype

The first SHORELINE is taking shape.

Component sourcing is underway for the sand-beige launch colorway. Follow four77 for prototype photos, dial experiments, and the decisions that turn the design into a real watch.

Get updates