Answer

A flight of Yokosho (Yokosuka) E1Y seaplanes. 

Correctly identified by David Brizzard and Marcus Z.

Here's a collection of photos of past posts and a few new ones.

A Navy Type 14-3 Reconnaissance Seaplane or Yokosho E1Y3 powered by a Lorraine-Dietrich 3 engine of the Kasumigaura Kokutai. The seaplanes in the clip were probably from the same unit.

A Takuma Kokutai E1Y3. 102 were built by Aichi between 1931-1934. It has a 4-blade propeller and a 450hp Lorraine 3 engine.

Two photos of a Yokosho E1Y probably an E1Y2 belonging to the Yokosuka Kokutai. Note the two blade propeller.

Photos from a vintage publication of a Navy Type 14-3 Reconnaissance seaplane or Yokosuka E1Y3, carried aboard the battleship "Kongo" as indicated by the katakana on the tail and fuselage.

Note also the beautifully colourised photo on top.

Bottom, is an early photo of the same seaplane without the red tail seen in the middle photo.

Yokosho E1Y Hokoku #6

Donated by citizens of Aichi Prefecture on July 10, 1932.

A photo of one of the experimental versions, the Yokosho E1Y2-D or Type 14 Reconnaissance Seaplane Model Kai-1-D. It was a completely different design than the rest of the E1Y series and was basically the prototype for the Type 90-3 Reconnaissance Seaplane or Kawanishi E5Y. Main differences were the Jupiter Model F8 450hp engine, installed for the first time, the extensive use of steel piping and the installation of a ventral machine gun position.

Data

Engine: Jupiter F-8, 450hp air cooled radial 9-cylinder

Hp during take-off: 520

Propeller: wood, fixed pitch, 2-4 blades, diameter: 3.55m

Span: 14.50m

Length: 10.552m

Height: 4.10m

Wing area: 55.00sqm

Weight: 1,800kg

Load: 1,200kg

Fully equipped: 3,000kg

Wing load: 54.5sqm

Power loading: 6.67kg/hp

Max speed: 96kt

Cruising speed: 70kt

After the Yokosho (Yokosuka) E1Y Reconnaissance Seaplanes were retired from service with the IJNAF, a number was released to civilian operators and some of them were converted to carry three to four passenger while the pilot still remained in the open cockpit. They were usually used for sightseeing, commercial or photo flights and others.

One such converted E1Y1 was operated by Nihonkai Koku Kaisha (Japan Sea Air Company) and received the civilian registration J-BEHH. The attached photo, is quite rare. Note the overall blue colour of the fuselage.

The "Japan Sea Air" was a very small airline founded in July 1931 by the major of Kinosaki, Hyogo prefecture Nakajima Kyutaro(?) and operated at least two aircraft one Mitsubishi MC-1 equipped with floats flying from Kinosaki to Osaka and later from Kinosaki to Matsue, Shimane prefecture and the converted E1Y1. The airline merged with other smaller ones to form Dai Nippon Koku (Imperial Japanese Airways).

In the 1942 movie "Nankai no hanataba" (Japanese title: 南海の花束, English title: Bouquet in the Southern Seas), a Yokosuka E1Y of Nippon Hikoki K.K., registration J-BFHJ, appears briefly.

A second Yokosuka E1Y, registration J-BFHA, also makes a brief appearance, with a Kawanishi E7K1 facing the camera.

AFAIK Choroszy is the only model manufacturer that has released kit(s) of this Japanese seaplane type.