Seiko Cal. 6648 - 437

The 6648-437 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6648 caliber with 20j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-ae35bde6b513]

Also known as: Bellmatic, Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1965

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