Seiko Cal. 3864 - 251

The Seiko 3864-251 represents an important milestone in Seiko's 1973 lineup. It features a Cream dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-ea739917af5a]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1973

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