Seiko Cal. 6178 - 750

The Seiko 6178-750 represents an important milestone in Seiko's 1998 lineup. Powered by the 6178 caliber with 31j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-9cd090f1b877]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1998

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