Seiko Cal. 6331 - 789

The Seiko 6331-789 represents an important milestone in Seiko's 1970 lineup. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-c965b4cd13aa]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1970

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