Seiko Cal. 6631 - 695

The Seiko 6631-695 represents an important milestone in Seiko's 1968 lineup. It features a Navy dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-9d73e37683b5]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1968

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