Seiko Cal. 6616 - 507

The Seiko 6616-507 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-f5e40cf6cae6]

Also known as: Turtle, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1977

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