Seiko Cal. 3869 - 178

The Seiko 3869-178 represents an important milestone in Seiko's 1980 lineup. Powered by the 3869 caliber with 35j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-952873dba641]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1980

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