Seiko Cal. 6616 - 666

The Seiko 6616-666 represents an important milestone in Seiko's 1973 lineup. It features a White dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-c2d5efc76cb4]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1973

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