Seiko Cal. 6681 - 278

The Seiko 6681-278 represents an important milestone in Seiko's 1965 lineup. It features a Navy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-e659eea6734b]

Also known as: Sumo, Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1965

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