Seiko Cal. 6316 - 137

The Seiko 6316-137 represents an important milestone in Seiko's 1990 lineup. With its 18mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-5858b2fd1066]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1990

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