Side by side

Lum-Tec B66 Day DatevsPraesidus Rec Spec

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

B66 Day Date

Lum-Tec B66 Day Date

MSRP $545

See the full B66 Day Date

Rec Spec

Praesidus Rec Spec

P-38-RSTI-MDG-KHNK1

MSRP $235

See the full Rec Spec

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Buy used on eBay ↗

Buy from Praesidus ↗

Buy used on eBay ↗

At a glance

9 of 29 specs differ

Diameter

B66 Day Date44mm

Rec Spec38mm

Power Reserve

B66 Day Date—

Rec Spec—

Water Resistance

B66 Day Date100m

Rec Spec100m

MSRP

B66 Day Date$545

Rec Spec$235

Full specifications

Case

5 specs

Category

Sport

Field

Diameter

44mm

38mm

Lug-to-Lug

51.5mm

—

Lug Width

22mm

20mm

Material

Titanium (DLC coated)

Titanium

Crystal & Dial

2 specs

Crystal

Domed Sapphire

Sapphire

Dial Color

Standard

Nylon NATO 38mm

Movement

1 specs

Caliber

—

Seiko NH36

Pricing

1 specs

MSRP

$545

$235

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