Seiko Cal. 6645 - 915

The 6645-915 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6645 caliber with 23j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-a05ab2c405d5]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1968

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