Seiko Cal. 6643 - 238

The Seiko 6643-238 represents an important milestone in Seiko's 1996 lineup. With its 21mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-7c251684f0b9]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1996

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