Seiko Cal. 6631 - 820

The Seiko 6631-820 represents an important milestone in Seiko's 1996 lineup. It features a Navy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-96d6b0267fd2]

Also known as: Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1996

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