Seiko Cal. 6310 - 399

This Spring Drive model from 1984 features a 36mm Two-Tone case. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-39abb4acf113]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1984

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