Seiko Cal. 6278 - 357

The Seiko 6278-357 represents an important milestone in Seiko's 1977 lineup. It features a Green dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-07a281c87293]

Also known as: Sumo, Crown

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1977

Related Models

• Seiko 6139-256
• Seiko 5226-351
• Seiko 6643-231
• Seiko 0745-495
• Seiko 6217-571
• Seiko 5210-690
• Seiko 5262-218
• Seiko 4561-897
• Seiko 6615-994
• Seiko 5628-637
• Seiko 5230-138
• Seiko 6169-450