Seiko Cal. 6646 - 791

The Seiko 6646-791 represents an important milestone in Seiko's 1985 lineup. It features a Silver dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-21026a8b0b6a]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1985

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