---
type: product
title: U-Boat 3339 Darkmoon 46.5mm Kama Grey PVD Watch
handle: u-boat-3339-darkmoon-46-5mm-kama-grey-pvd-watch
url: >-
  https://www.hsjohnson.com/products/u-boat-3339-darkmoon-46-5mm-kama-grey-pvd-watch
sku: '3339'
price: '145000.0'
currency: GBP
tags:
  - Mens
  - new-arrival
  - out_of_stock
  - preorder
collections:
  - Watches
  - U-Boat
  - Out of stock
  - All
  - Mens Watches
  - New Arrivals
variants:
  - title: Default Title
    price: '1450.00'
    sku: '3339'
images:
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created_at: null
updated_at: null
metafields:
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  custom.amazon_price: '1450.00'
  global.tag-18-pricing-rule: '02 - Price match: google / combined'
  global.tag-21-minimum-price: '60'
---

A striking timepiece that defies convention. The U-Boat Darkmoon 3339 showcases an innovative photochromic dial that responds to sunlight, shifting from visible to concealed as light intensifies. Rather than traditional legibility, this 46.5mm watch creates an enigmatic aesthetic—the dial darkens to deep black or violet tones in bright conditions, then gradually reveals itself in lower light. Crafted from stainless steel with Kama Grey PVD finishing, it's a bold exploration of form and function that challenges expectations of what a watch should be.

**We are a U-Boat UK authorised dealer**

**New boxed stock with full retail boxes & paperwork**

  

**MOVEMENT**  
ronda 762, lubricated in an oil bath.

**FUNCTIONS**  
hours, minutes.

**CASE**  
316L stainless steel with PVD treatment. Screw-down crown. Diameter: 46.50 mm.

**DIAL**  
gray metal with a brushed soleil finish. Black hour markers and numerals. U-shaped applied hour marker treated with black superluminova. Special purple photochromic filter. Black metal hands treated with black superluminova.

**GLASS**  
domed sapphire crystal.

**BACK**  
316L steel with PVD treatment. Locking ring system with quick battery replacement. Laser engravings + QR.

**WATER RESISTANCE**  
50 m, 5 ATM.

**STRAP**  
calfskin leather strap. Ref. 7872/Z 316L stainless steel with PVD treatment buckle. Ref. 5467/Matt/Screw.