Seiko Cal. 5671 - 639

The Seiko 5671-639 represents an important milestone in Seiko's 1965 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-060a427dcc65]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1965

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