Seiko Cal. 6391 - 155

The Seiko 6391-155 represents an important milestone in Seiko's 1994 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-7df6ea5e16ab]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1994

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