Seiko Cal. 6644 - 388

The 6644-388 is a sought-after Automatic piece from Seiko's golden era. With its 20mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-6bfa871bde85]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1980

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