Seiko Cal. 6377 - 531

The Seiko 6377-531 represents an important milestone in Seiko's 1987 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-6a520def337c]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1987

Related Models

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• Seiko 6190-906
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• Seiko 6282-430
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• Seiko 3875-711
• Seiko 6640-510
• Seiko 5611-117
• Seiko 6376-903
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