Seiko Cal. 5670 - 431

The Seiko 5670-431 represents an important milestone in Seiko's 1965 lineup. It features a White dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-160310c3e41f]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1965

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