Seiko Cal. 6627 - 398

The Seiko 6627-398 represents an important milestone in Seiko's 1971 lineup. It features a Black dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-579223b5e2a2]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1971

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