Hamilton Khaki Field Murph 42 H70605731
Mech field · Hamilton · made in Switzerland

Hamilton Khaki Field Murph 42 H70605731

Ref. H70605731 · Amazon ASIN B07Q58KW2L
Automatic (H-10)Sapphire crystal100 m42 × 50 mm

The original 42 mm Murph: Khaki Field Auto with the Interstellar dial, H-10 80-hour caliber, sapphire, 100 m, black leather strap.

Power reserve80 h
Case diameter42 mm
Lug-to-lug50 mm
Thickness11.9 mm
Lug width20 mm
Made inSwitzerland
Amazon price · new
$1,095.00
Value Score
70 of 100
Rank in type
8 of 8 mechanical field watches
Spec points
77
vs. type median
+34% ($820)
Amazon sales rank
#1,342 wrist watches
View H70605731 on Amazon

In stock · sold by Amazon.com. Price as of November 3, 2026, 18:15 UTC.

Wrist fit

Will the Hamilton Khaki Field Murph 42 H70605731 fit your wrist?

Enter your wrist circumference. The drawing scales the case (42 mm across, 50 mm lug-to-lug) against the flat top of a wrist that size, using the 3.6× lug-to-lug rule from our fit guide. Needs JavaScript; the rule itself is on the fit guide.

Specifications

What you get

Published manufacturer specifications. Fields we could not verify are left out rather than guessed.

ReferenceH70605731
MovementAutomatic (H-10)
Power reserve80 h
Hacking / hand-windingYes / Yes
CrystalSapphire
Water resistance100 m
Screw-down crownNo
Case diameter42 mm
Lug-to-lug50 mm
Thickness11.9 mm
Lug width20 mm
Strap / braceletLeather
LumeYes
Calendardate
Made inSwitzerland
Warranty2 years
Fits wrist from18 cm (7.1″)
Value Score

How the 77 spec points add up

Value Score = 100 × √(spec points per dollar ÷ the best ratio among mechanical field watches in stock on Amazon today). Full methodology.

Automatic, hacking + hand-winding+30
Sapphire crystal+15
100 m water resistance+12
Leather strap+3
Luminous hands and markers+4
Date+2
Power reserve 80 h+5
Made in Switzerland+6
Spec points77
Alternatives

Compared with other mechanical field watches

Same type, other model families, verified Amazon prices today. See the full Mechanical Field Watches ranking →

Watches ranked by Value Score
#WatchMovementCrystalWater res.Case diameter × lug-to-lugFits wristSpec ptsPriceValue ScoreBuy
1Automatic (Miyota 821D)Mineral30 m38 mm—53$367.50100Amazon
2Automatic (H-10)Sapphire100 m42 × 50 mm≥ 18 cm (7.1″)77$1,095.0070Amazon

Amazon.com prices as of November 3, 2026, 18:15 UTC — details. third-party = sold by a marketplace seller, not Amazon (warranty may differ); ships later = not in stock today, never crowned best value.

FAQ

Questions about the Hamilton Khaki Field Murph 42 H70605731

How much does the Hamilton Khaki Field Murph 42 H70605731 cost on Amazon?
As of November 3, 2026, 18:15 UTC, the Hamilton Khaki Field Murph 42 H70605731 (H70605731) is listed new on Amazon at $1,095.00, sold by Amazon.com. That is 34% above the median of the 8 mechanical field watches we track with a live price ($820). Prices change; the price shown on Amazon at checkout applies.
What is the Value Score of the Hamilton Khaki Field Murph 42 H70605731?
Value Score 70. It earns 77 spec points (Automatic (H-10), sapphire crystal, 100 m water resistance) and today's price of $1,095.00 gives 7.0 points per $100. The score is 100 times the square root of that ratio divided by the best ratio among mechanical field watches in stock on Amazon today. The formula is published on our methodology page.
What wrist size fits the Hamilton Khaki Field Murph 42 H70605731?
With a 50 mm lug-to-lug span and 42 mm case, it sits flat on wrists of about 18 cm (7.1 in) or more, using the 3.6× lug-to-lug rule of thumb. Lug width is 20 mm for replacement straps.
What are alternatives to the Hamilton Khaki Field Murph 42 H70605731?
Among mechanical field watches with a verified Amazon price today, the highest-scoring alternatives from other model families are: Bulova Military Hack 96A282 ($367.50, Value Score 100). See the full ranking on our Mechanical Field Watches page.
Straps

20 mm straps that fit the Hamilton Khaki Field Murph 42 H70605731

The lug width is 20 mm, so any 20 mm strap fits. These are the straps we list for that width; see the lug width chart for every size and the accessories page for winders, boxes and tools. Full picks with buying notes: Best 20 mm watch straps.

20 mm straps
ItemKindLug widthPriceBuy
BISONSTRAP hand-stitched leather, quick release, 20 mm
Entry-price leather with quick-release pins.
Leather strap20 mm$14.99third-partyAmazon
Getalia Tuscany vegetable-tanned leather, 20 mm
Full-grain Italian leather; ages with wear.
Leather strap20 mm$24.99third-partyAmazon
Archer military-style nylon, 20 mm, black
Heavy nylon with brushed hardware.
Nylon / NATO strap20 mm$19.99third-partyAmazon
Archer military-style nylon, 20 mm, black/gray
Heavy nylon with brushed hardware.
Nylon / NATO strap20 mm$19.99third-partyAmazon
StrapHabit FKM rubber, quick release, 20 mm
Fluororubber: no smell, no sweat marks; the diver upgrade.
Rubber strap20 mm$38.95third-partyAmazon
WOCCI 316L steel bracelet, double-locking clasp, 20 mm
Inexpensive solid steel bracelet.
Steel bracelet20 mm$28.99third-partyAmazon
EACHE steel mesh bracelet, 20 mm
Milanese mesh for dress and field watches.
Steel bracelet20 mm$19.99third-partyAmazon

Amazon.com prices as of November 3, 2026, 18:15 UTC — details. Accessories have no Value Score; they are listed for fit, not ranked.