Seiko Cal. 6644 - 650

This Spring Drive model from 1994 features a 46mm PVD Black case. Powered by the 6644 caliber with 35j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-679a1c95100c]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1994

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