Seiko Cal. 5685 - 138

The Seiko 5685-138 represents an important milestone in Seiko's 1965 lineup. Powered by the 5685 caliber with 36j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-26bf707eaf47]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1965

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