Seiko Cal. 6316 - 645

Released in 1977, the Cal. 6316 with design code 645 was part of Seiko's domestic market collection. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-9fa1067fffc6]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1977

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