Seiko Cal. 6639 - 499

The Seiko 6639-499 represents an important milestone in Seiko's 1985 lineup. Powered by the 6639 caliber with 27j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-ecbe3e43051e]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1985

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